Nice work so far, better than anything I can do. My only crit is that on the cheek there are six faces sharing one vertex. I think the goal is four faces but definitely no more than five. This is what I've read anyway. I think it has something to do with texturing and/or animation. Other than that, it looks like it's coming along nicely.
Don't be satisfied with what you can do but rather strive to do the things you can't do!
Exceed Expectations!