Optical illusion - images

[BigV]

Remember those Magic Eye pictures? They looked like a bunch on spattery gobbley-gook, until you learned to cross your eyes in a particular way and then an image seemed to jump out of the page. I learned to do that fairly well, and I've tried it with the image above and I'm able to move the separate images together in my field of view to turn her brown eyes blue, to borrow a phrase. She looks like a scary zombie when I do. A pretty zombie to be sure, but with scary looking eyes.