Well,

The teeth are just a temp sculpt in ZBrush as place holders until I bring in some others and actually hvae a lower and upper set. You just sculpt a mouth and flatten the inner section and extract off that selection to get the positioning (Cesar Decol does this over at Gnomon which is where I mostly do my training). They have been painted a bit and have the material setting of toyplastic set to them. I saw a tutorial a while back and this is what they did to give them this glossy wet look. Works really good.

As for the character I am hoping to either throw him in a boxing or tennis game as a character. He would drift to the evil side, you are correct. The biggest problem I face at the moment is that I like Unity's pipeline and how it can take FBX really nicely but it also handicaps me in tri count. I know Unity quite well and it does an excellent job at porting to diff consoles but it does lack in quality which is something that makes me cringe....