[Yuri_the_botfly]

This was surprisingly quite the pain to get working right. It would work better if I removed some of the signatures but I'm not doing that. Anyways, you always see these sorts of images in optical illusion books. The trick of this one is that although it appears that the cats are different colors, they are all the exact same shade of gray. That's how it should work, anyway. If you squint it kinda does.