Dude, hey its not a prob, Id rather bad crit than no crit at all providing its constructive.
The teeth...hmmm, it was a tricky one to decide on. I had a look at some images of teeth on 'creatures', you know werewolves etc to get a feel for them and how they would look, I even pulled faces in the mirror. The problem is that none of the above mentioned is a relaxed state of the face. The teeth in a movie are false teeth on top of real teeth hence the bulk in the jaw, and as for me pulling faces in the mirror well thats just damn ugly. So I had a look at a dog, tigers and crocs, none of which have any bulk in the lower jaw for the teeth, all have a relaxed look so I did the same with this guy.
Its a tough one to try and do, to make this stuff believable at the end of the day, as long as the facial expressions on this guy work with those teeth I'll be happy enough.