Pintura n 21 , by raul lozza , 1945 , abstract , Concretism style
A picture of a colorful piece of artwork on a wall.
An abstract piece of artwork is displayed on a white wall.  The artwork is composed of six different colored rectangles arranged in a diamond shape.   The rectangles are green, yellow, orange, blue, and light blue.  There is a thin white border around each of the rectangles.