Untitled , by martha boto , 1971 , abstract , Op Art style , Circle, Spiral, Target archery
A picture of a colorful circle with a black background.
 an abstract art piece. It has a black background. In the center of the image there is a circle that is made up of multiple colors. The colors are red, orange, yellow, green, blue, pink, white, and purple. There are small silver balls in the middle of the circle.