Cats (Rayist percep. in rose, black, and yellow) by Natalia Goncharova (1913, Oil on Canvas, 85.1 x 85.7 cm, Guggenheim Museum, New York).
This is a Rayist (or Rayonist) composition in which the artist tries to capture rays of light reflected off objects in the material world. Dynamic lines are added to suggest crystalline forms and the movement of light and energy. The style was influenced by scientific discoveries on the discovery of X-rays and radioactivity suggesting a reality beyond the direct perception of the naked eye.
In the Dark 