Use Patterns in Pictures
Pattern within Pattern: This image has multiple patterns repeating the central shape, the shadows and curves and edges which creates a compelling image.
Pattern as Subject: the light on the subject creates a repeated pattern of curves from the highlights and shadows. The actual subject is obscured so the pattern has become the subject.
Try This: Find a subject such as line of cars, columns in a building or a row of houses - move the camera from low to high angles until you see the pattern repeated most strongly - then snap!