Relief #123 , by cesar domela , 1968 , abstract , Concretism style
A painting of red and brown circles on a green background.
A painting of three circles on a green background. The circles are red, purple, and beige. They are connected by a thin white string. The red circle is larger than the purple one. The purple one is smaller than the red one. There is a thin red stripe on the bottom of the circles.