I was working on some very special art, and had to practice with the new brushes from Obsidian Dawn. http://www.brushes.obsidiandawn.com/index.htm
Anyway, I thought I'd try to depict what I've been trying to explain to others what I see when my eyes are closed. This is something currently impossible for me to render in pencil. I've tried. There's this oscillating bubble like effect in dead center when my eyes are shut tight. like bubble wrap in a photo negative. Would that be the optic nerves version of TV snow/dead air?