Green Loop , by jack bush , 1971
A painting of a gray background with green, yellow, and red stripes.
 an abstract painting. The painting has a gray background. On top of the painting is a large green number 2. Below the number 2 are three horizontal stripes of different colors - yellow, orange, and blue. The colors are red, blue, and yellow. There is a brush stroke on the top and bottom of the picture.