Cosmos N°3 , by martha boto , 1977 , abstract , Op Art style , Circle, Spiral
a painting of a blue and pink circle with a green ball in the middle
 an abstract art piece. The background is black and the main focal point of the piece is a circle. The outer ring is blue and the inner ring is light blue. In the center of the circle is a light pink color. There is a green circle in the middle of the light pink circle. There are also dark blue and dark blue lines in the outer ring. The lines are arranged in a way that creates a spiral effect.