Thanks guys!

The head took about 8 hours to do. The reason it looks kind of low poly is because I'm using a displacement map along with the mesh. The actual model was about 3 million polys. Zbrush calculates the difference between the lowest detail level and the highest then it generates the displacement map for you.

The inside of the mouth started in Zbrush them finished in Maya. Yeah, I took some liberties with the teeth. I probably should have used some reference material as a guide but I decided to just wing it.

I agree that the front teeth need to be rounded a bit. Thanks.