Odilon Redon’s Two Trees, c.1875 creates the atmosphere of a somewhat sinister wood by the contrast of tones. The lighter tones on the trunks and branches and in the foreground against the darker pieces create mood and a sense of three dimensions.
This is also apparent in Redon’s The Marsh flower, illustration from Hommage a Goya, 1885. In this lithograph darks and lights together with the strange, suspended face create a dreamlike atmosphere.