Shape

Bimorphic Shape; It looks like a living underwater creature

Geometric Shape: The circles and rectangles in this image create interesting shape

Negative Shape: The shed is the negative shape, we focus on the branches in the front and really don't even notice the shed.

Nonobjective Shape: This is actual an image of the bark of a tree, there are no distinct shapes in it.

Positive Shape: The wooden sign is the positive shape, we only look at that, not noticing the houses and playground in the back.

I wasn't sure what category this would fall under (if any), but I love the colors and shapes that make it!