Four Seasons , by leo valledor , 1980 , abstract , Hard Edge Painting, Op Art style , Orange, Line
An abstract painting of a blue sky, orange, yellow, red, white, and green.
An abstract painting with a blue sky on the left side. On the right side there is a yellow rectangle with a red rectangle in the middle. The rectangle is divided into two equal parts. The right side has a green rectangle and a blue rectangle. The white rectangle is in between the red rectangle and the green rectangle.