Okay, yes I see a face. I don't know if it's the same face that everyone else is seeing. I also see a dinosaur head (right-hand side), a wrinkly wizard's face with a tall hat (dead center) and a jack-o-lantern (very top, slightly right of center).
I don't see any definitive faces, but I do see Santa though! Nice find! I also see the dragon at the bottom right looking down and a dinosaur too. Since where I'm seeing them might be different than the rest of you, below is where I'm seeing them. VERY COOL PIC! Thanks for sharing!!!