Looks great! the only CC I can give is to move some of your vertexs back slightly: Also, you may not want the eyes to be attached to the model, I haven't been modeling too too long, so anyone, feel free to correct me.
hey man. nice job! i'll see what i can come up with. the mouth shape, like you say, is totaly wrong. the top lip ridge should be more of an m shape. the middle slit shouldn't cuve up like that. in a neutral pose, i think it might almost curve down just slightly. it looks like the corner's of the mouth terminate to a single…