I made a few changes. I felt that black lines added some depth to the stretched "lips" that was probably only visible to me because i was used to looking at it in 1600x magnification. Then I went and quickly whipped up a composition from some of the other stuff i'm working on.
Yeah, i'll probably have to animate this guy. First have his hands come up and grab the bridge, then his head pops up, then hands read around from behind his head and stretch the mouth. Its a lot, but honestly seeing what would amount to an animated Goatse in 16 bit (or rather imagining others seeing it when not expecting it) would be priceless and awesome. The only issue I have is whether the face pre-opening should be entirely featureless, or whether it should have a bit of a pucker on which the hands would grab onto to... oh well, i'll figure out which is better when I do it.