
plate no. 4902
what to study here
It shows how a portrait can hold attention through soft edges, narrow value steps and a luminous face rather than strong contrast.
The main thing to study here is restraint in the flesh. The vision guide reports that the face is lit from the left and modeled with very gradual value changes across the cheek and forehead. Squinted, the face reads as almost one warm mass against a cooler, muted ground. The lightest lights sit on the forehead, nose and upper cheek, with scattered highlights on the armor. Everything else stays in the mid-tones, so the picture is high-key with no hard shadow shapes. Edges are soft throughout. The face-to-background transition is hazy, and even the armor edges blur slightly. The breastplate is greenish-gray with brass-gold bands and rivets, and these small areas of detail are the sharpest in the picture, though still soft. The background shifts from teal-green at upper left to ochre at lower right, and a teal sash crosses behind the armor. Study how a student can keep the face luminous by keeping the surrounding values quiet and the shadows muted, and how a small amount of defined detail on the armor holds attention without breaking the softness.
key decision
The painter kept the flesh to extremely gradual value transitions with almost no hard shadow shapes, so the lit face reads as one warm mass. Detail is saved for the armor's rivets and bands.
recreation guide
This artwork is an oil portrait of Marc René, Marquis de Voyer d'Argenson, depicting him in his military capacity as Lieutenant General. While the specific visual details of this particular canvas are not described in the provided sources, the work belongs to the Rococo genre and the tradition of portrait painting, which historically served to memorialize the rich and powerful, often commissioned by public or private persons to record their appearance and status (Source 5). The artist, Maurice Quentin de La Tour, is historically renowned for pastels, but this specific work is identified as oil. The recreation must therefore rely on general oil painting practices of the period, particularly the methods of the 'old masters' who frequently employed glazing and scumbling techniques to achieve depth and luminosity, rather than the opaque mixing common in later modern practices (Source 1).
estimated time
40-60 hours over 8-12 sessions
materials
8 items
steps
6 in sequence
materials
| item | purpose | modern equivalent |
|---|---|---|
| Linseed oil | Primary drying oil for binding pigments; general purpose medium. | Refined linseed oil |
| Oil of Copavia | Historical medium used by Sir Joshua Reynolds for first and second paintings; provides a slow-drying, non-yellowing vehicle. | Stand oil or damar varnish mixed with turpentine (as a substitute for historical copal/copavia resins) |
| Lead White | Dominant white pigment for centuries due to opacity and fast drying; essential for highlights and flesh tones. | Titanium White (note: lacks the transparency and drying speed of lead white) or Flake White (if accessible) |
| Ultramarine | Used in the initial monochrome underpainting (grisaille) alongside black and white. | Ultramarine Blue |
| Black (Ivory or Lamp Black) | Used in the initial monochrome underpainting to establish values. | Ivory Black |
| Red Ochre / Yellow Ochre | Earth pigments for broken tones and flesh coloring; noted as sufficient for many tones and possessing good covering qualities. | Natural Red Ochre, Yellow Ochre |
| Vermilion (Cinnabar) | Historical red pigment for vibrant tones, such as military uniform accents. | Cadmium Red or Quinacridone Red (non-toxic substitutes) |
| Canvas or Panel | Support for the oil painting. | Linen canvas primed with gesso |
preparation
surface prep
Prepare a rigid support (panel or stretched canvas) with a white or light-toned ground. While the specific ground for La Tour is not detailed in the sources, the technique of glazing over a grisaille requires a stable, non-absorbent surface. The sources note that old masters often worked on grounds that allowed for transparent layers (Source 1). Ensure the surface is smooth to facilitate the fine finish typical of Rococo portraiture.
underdrawing
The sources do not specify La Tour’s underdrawing method for oil works. However, general practice for this period involves a light charcoal or thinned oil sketch to establish proportions. Given the emphasis on 'sound craftsmanship' and reducing thoughts to words (Source 6), a precise initial drawing is likely necessary to ensure the likeness, which is the primary intent of portrait painting (Source 5).
underpainting
Execute a monochrome underpainting (grisaille) using black, ultramarine, and white mixed with oil of copavia or linseed oil (Source 1). This step involves 'mentally extracting the red and yellow colours' to establish the value structure of the portrait (Source 1). This grisaille must be allowed to dry completely before proceeding to color layers. This method is attributed to Sir Joshua Reynolds and noted as a practice of the 'old masters' (Source 1).
color palette
Monochrome Underpainting
Black, Ultramarine, White
Establishing values and forms in the grisaille stage (Source 1).
Flesh Tones
Lead White, Red Ochre, Yellow Ochre, Vermilion
General use in this artist's palette; flesh colors are fixed by the model but require careful handling of inherent colors (Source 4, Source 2).
Military Uniform Accents
Vermilion, Ultramarine, Lead White
Adding brilliancy and harmony to the clothing, ensuring the colors do not appear antiquated (Source 3).
Shadows and Depth
Ultramarine, Black, Burnt Umber
Creating chiaroscuro and gradation of light through juxtaposition (Source 2).
composition
The composition likely emphasizes the sitter's status as a Lieutenant General. While specific layout details are not in the sources, portrait painting aims to achieve a recognizable likeness and serve as a record of appearance (Source 5). The arrangement of colors should consider the law of simultaneous contrast, where juxtaposed colors influence each other's tone and brilliance, ensuring harmony in the military uniform and background (Source 2, Source 3).
step by step
underdrawing
step 01
Sketch the likeness of the Marquis de Voyer d'Argenson, focusing on accurate proportions and facial features to ensure a recognizable record.
Tip — Ensure the likeness is accurate, as this is the primary intent of the genre (Source 5).
Portrait Drawing
underpainting
step 02
Mix black, ultramarine, and white with oil of copavia (or a suitable modern resin medium) to create a grisaille. Paint the entire composition in monochrome, establishing all light and shadow values.
Tip — Mentally extract red and yellow colors, focusing only on value structure (Source 1).
Grisaille
first pass
step 03
Once the grisaille is completely dry, begin glazing and scumbling with oil. Apply transparent coats of color (glazing) and semi-opaque layers (scumbling) to introduce red and yellow tones.
Tip — Treat the process like tinting an engraving with watercolors, building up color gradually (Source 1).
Glazing and Scumbling
refining
step 04
Refine the flesh tones and uniform details. Use the law of contrast to enhance the brilliance of the military colors. Juxtapose tones to create a true gradation of light and chiaroscuro.
Tip — Be aware that placing a high-tone band next to a low-tone band will insensibly enfeeble the high tone and heighten the low tone (Source 2).
Simultaneous Contrast
finishing
step 05
Add final highlights and details to the uniform and face. Ensure the colors inherent to the model (flesh, eyes, hair) are rendered accurately, while choosing draperies and background colors to harmonize with the composition.
Tip — Select color associations that impart brilliancy and harmony, preventing the work from appearing antiquated (Source 3).
Color Harmony
varnishing
step 06
Apply a final varnish to protect the painting and unify the surface gloss, especially if glazes were used with varnish and oil mixed.
Tip — Ensure all layers are fully dry to prevent cracking or yellowing.
Varnishing
critical techniques
Glazing and Scumbling
A transparent coat of color (glazing) and semi-opaque painting (scumbling) over a dry grisaille. This method was practiced by old masters to achieve depth and luminosity, contrary to modern prejudices against it (Source 1).
Simultaneous Contrast
Using the juxtaposition of different tones and colors to create chiaroscuro and gradation of light. This principle helps in harmonizing colors inherent to the object (like flesh) with chosen colors (like draperies) (Source 2).
Color Selection for Portraiture
Selecting color associations for clothing that impart brilliancy and harmony, ensuring the portrait remains aesthetically pleasing even when fashion changes (Source 3).
common pitfalls
what the sources don't tell us
Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.
grounded in
The technical procedure in this guide traces to the following classical art-instruction texts.
The Practice of Oil Painting↗
Laws of Contrast of Colour↗
The Science of Painting↗
cross-referenced from
Named facts about this artwork and artist were checked against these reference pages.
Wikipedia: Portrait painting↗
Read more about the corpus on the sources page and how the guides are built on the methods page.
what the eye sees
A three-quarter-length military portrait set against a warm-cool gradient background that shifts from teal-green at the upper left to soft ochre at the lower right. The subject occupies the left-center of the composition, his face brightly lit from the left with remarkably soft modeling across the planes of the cheek and forehead. The armored breastplate dominates the lower half, rendered in metallic greenish-gray with brass-gold decorative bands and rivets, while a deep teal ribbon or sash crosses diagonally behind. The eye is drawn first to the illuminated face, then held by the reflective armor surfaces.
value structure
The lightest lights cluster on the face—forehead, nose, upper cheek—and scattered highlights on the armor's prominent surfaces; mid-tones govern the majority, creating a soft, atmospheric feel; darkest darks anchor the composition in the deep background greens and the shadowed areas of hair and armor recesses. Value transitions are extremely gradual, almost imperceptible in the flesh, making this a high-key, luminous portrait with no aggressive shadow shapes. Squinting reveals a face that reads as almost a single warm mass against cooler, muted background and armor.
observed palette and mixes
#b1c3aa
titanium white + prussian blue + yellow ochre
flesh tones, highlights on armor and face
#8fad8f
prussian blue + yellow ochre + white
armor plates, mid-tone metallic surfaces
#8b936b
viridian + raw umber + white
background greens, shadow side of armor
#726a49
raw umber + yellow ochre + ivory black
warm mid-tones in background lower right, warm shadows
#535d49
prussian blue + ivory black + viridian
deepest background, armor recesses, hair shadows
#33302a
ivory black + raw umber
darkest accents, deep shadow areas, definition lines
edges and brushwork
Edges are almost entirely soft and diffused throughout the portrait—the transition between face and background is hazy rather than defined, and even the armor edges blur subtly into background. The technical challenge lies in this invisible technique: brushwork is completely blended away, creating smooth transitions that require patient glazing or very soft blending with dry brushes. Only the sharpest clarity appears where armor detail (rivets, bands) catches light, but even these maintain softness compared to later portrait styles.
a working sequence
Underpainting and proportions
Lightly establish the three-quarter composition with the head positioned left-center and the armored torso below. Block in the major value zones: the teal-green upper background, the warmer ochre lower-right, and the figure's silhouette. Keep proportions loose—focus on confirming that the head is roughly 1/7th of total height and the armor's width at the shoulders.
Background gradient
Lay in the background as a soft gradient from cool teal-green at upper left to warm ochre-gold at lower right, with greenish-gold tones visible throughout. Avoid hard edges; feather and blend these areas with a large soft brush or dry blending to create atmospheric softness. This groundwork anchors the luminosity of the face.
Flesh tones and face structure
Using warm ochre, cream, and soft peachy tones, block in the face with very light value. Model the cheekbones and nose with almost imperceptible shadow—this portrait's luminosity comes from restraint. The lit side of the face should feel like a unified warm shape; save detailed form-modeling for later refinement. The neck and ear establish the turn of the head.
Armor foundation
Lay in the breastplate as a muted greenish-gray (the armor's base tone), then indicate the brass-gold decorative bands that cross it and the rivet pattern with a slightly warmer, more metallic tone. Don't render highlights yet—establish the form first. The curved surface should suggest volume without excessive shading.
Collar, ribbon, and dark accents
Define the cream-colored collar at the neck, then lay in the deep teal ribbon or sash that crosses diagonally behind the armor. Establish the darkest values in the hair and deep armor recesses. These dark shapes help anchor the lighter face and give the composition depth.
Modeling and metallic effects
Refine the face with subtle glazes or soft blending to create gentle form—cheekbones, the turn of the cheek, eyelids. For the armor, add soft highlights on the curved surfaces of the breastplate to suggest metallic reflection; keep these blended and cool-tinted rather than bright white. The rivets and bands need just enough definition to read as detail without becoming harsh.
Soft transitions and atmospheric unity
Using a large soft brush and very light touch, blend the edges where the figure meets the background, softening any hard transitions. The face should feel to emerge from the background rather than sit in front of it. Adjust background color around the head's silhouette to ensure the teal-to-ochre shift reads smoothly across the entire composition.
Final refinement and highlights
Add final bright highlights to the forehead and nose, the brightest points on the armor's curved surfaces, and catch-lights in the eye. These should be sparse and soft, never harsh. Step back frequently and squint—if the painting reads as a luminous, unified whole rather than distinct objects, you've captured the essence.
where studies of this painting go wrong
measured difficulty
tips & new artworks in your inbox
no spam — unsubscribe anytime.
or to save artworks, chat, and track progress
in this vein

Louis XV, King of France
Charles-Andre van Loo (Carle van Loo)

William James
Joshua Reynolds

Wooded Landscape with Gypsies, Evening
George Lambert

Head of a Scholar
Giovanni Domenico Tiepolo

Gentleman and Wife
William Williams

Portrait of Antoine Watteau
Rosalba Carriera

Portrait of Henriette of France, daughter of Louis XV
Jean-Étienne Liotard

Mr. John Williams
Benjamin West