Very Cool …Abstract — Oh look, it’s an …

Fun with fill tool.
Digital abstract sketch.
Check out this article :

Brain finds pleasure in processing abstract art

The reference point is different for each person. In the blink of an eye, this image is quickly visually digested, compared and referenced with core recognition images stored in the brain. This alone keeps abstract design interestingly relying on individual imaginative interpolation of form colour, space and line — then interpretation.