The Kislar Aghassi, head of the black eunuchs

surface prep

Vanmour worked in oil, a medium that requires a prepared surface to ensure longevity and proper paint adhesion. While specific ground recipes for Vanmour are not detailed in the sources, general oil painting practice of the era involved preparing canvas or wood panels with a gesso or oil-based ground to create a smooth or slightly textured surface suitable for the 'richer and denser color' and layering techniques characteristic of the medium (Source 8).

underdrawing

The sources do not explicitly describe Vanmour’s underdrawing methods. However, given his background in the Flemish-French tradition and his detailed portrayals, a precise underdrawing is likely. Artists of this period often used charcoal or thinned oil to sketch the composition before applying paint. Vanmour’s work was noted for its detail, suggesting a careful preparatory stage to ensure accuracy in costume and protocol (Source 1).

underpainting

Vanmour’s technique likely involved layering, a key advantage of oil painting (Source 8). While specific underpainting colors are not cited, the Flemish school often employed warm brown shadows and broken touches of light, as seen in Rubens’ work which influenced the period (Source 4). An underpainting in earth tones would provide a foundation for the subsequent glazes and opaque layers.

Contrast of Tone

Using white or brilliant colors to heighten the complexion of dark-skinned subjects, or black drapery to lower it (Source 3).

Layering and Glazing

Building up paint in layers to achieve rich color and depth, a characteristic of oil painting and the Flemish school (Source 8, Source 4).

Detailed Observation

Accurately depicting Ottoman court protocol and costumes, as Vanmour was allowed to enter the palace and observe ceremonies (Source 1).