All in red. Squares in several sizes move over a strong and illuminated red background.
The small squares are an opaque red that seems to fly over the light behind them. The optical illusion suggests that some of those flying squares have round sides, but no – they are all in a straight line.
This is a composition that catches the viewer, confuses the eyes, asks questions without response to a fascinated mind. The ideal size for this picture is around 100 cms square.