Wow! Talk about Twilight Zone!!! The negative effect makes this kinda creepy, and I kinda like that. Excellent abstract execution of the challenge. One of my faves.
I can't stop staring at this image. My first thought was that this can't be legal in Basic, but I couldn't figure out how you would have done both eyes so well in Advanced either.
I can only hope you post how this was done after the challenge is over. I keep thinking "redeye", but my only guess is it has something to do with colors and how they convert to black and white in something like Channel Mixer.