Abstract Art

All three of these pictures are colored so that it creates depth, and the illusion that it is 3D. The first one uses a curved line to act as a barrier for the color, which switches from a gray scale to a more orange scale. The second picture has the two swirls that make it look like a textured cave going into each of them. The third picture has shapes that look and are textured like stones, and the lighting makes the white rectangular shape look like an exit out of a cave.