Moving into even more abstraction. First image is an invert of one of my "Abstract Vector Graphics":
Next I combined the original crop with its color inverse:
Below I took a crop from one of the high contrast images, ran an image trace and formed into a texture.
I multiplied the texture across the art board on Illustrator and applied it to each area of the graphic of a certain tone. The assignment was to replace all the black or white in the graphic; I thought it was too boring so I applied it to one of the lighter gray tones: