Abstração , by amilcar de castro , 1993 , abstract , Neo-Concretism style
A painting of a red and black X on a white background.
A black square with a large X in the middle. Inside the X is a red rectangle. The rectangle is divided into two equal parts, the left part is white and the right part is black. There is a black brush stroke on the edges of the square. The black square has a white border around it.