Woo, Flapjack! :D
First, 10 stars just because this is Flapjack. That's pure WIN already!
Lol, I kid. :) But seriously, Flapjack is freakin' amazing.
The shading is marvelous (no pun intended), but it seems oh so slightly flawed in a few areas. Flapjack and the pumpkins' drool doesn't seem to be shaded. It's not that they have to be shaded, and it doesn't ruin picture because they aren't shaded either, but concerning everything else about them is shaded so well, I think the drool should've been shaded too. My only other critisism is that the background seems rather undetailed. It looks great, don't get me wrong, and the contrast between the foreground and the background is great. I just think it could've looked better with some more detail.
It's a little creepy for Flapjack, but hey, what's Halloween without creepy? ;)
Epic job man; I totally dig this.