Flowers in a Vase with one Handle

surface prep

The canvas should be prepared to accept oil paints while maintaining a surface that does not shine at any angle, as a mat or dull surface is crucial for the decorative and perceptual qualities of the work (Source 1). The ground should be smooth enough to allow for the subtle gradations of light and color characteristic of Redon’s later style, but not so glossy as to interfere with the 'dulness of surface' recommended for such decorative oil works (Source 1).

underdrawing

Redon’s later oil paintings often show a loose, expressive approach to line, moving away from the precise botanical accuracy of his earlier drawings. The underdrawing should likely be minimal, focusing on the 'line-scheme' and arrangement of forms rather than botanical correctness (Source 7). The artist characteristically avoided 'confusing detail' in favor of capturing the character of the subject simply (Source 7).

underpainting

While specific underpainting techniques for this exact work are not detailed in the sources, Redon’s practice involved building up layers to achieve 'richer and denser color' (Source 5). A thin initial layer (imprimatura) using diluted oil paint could establish the tonal values and color harmonies, allowing for the 'gradation of light' described in the laws of contrast (Source 4).

Simultaneous Contrast

Used to modify the aspect of a color without changing it, by surrounding it with its complementary color to increase brilliancy or with the same color to soften it (Source 3).

Mat Surface Finish

Achieved by mixing colors with little oil or wax and using petroleum, spike oil, or turpentine as vehicles to ensure the surface does not shine (Source 1).

Lyrical Chromatics

Redon’s use of bright colors to release the subject from stylized naturalism, demonstrating the endless possibilities of color in his later work (Source 6).