Just a quick preview render of a mesh I'm currently working on. Not sure about the topology on this one -- the polygons follow the mouth but the rest of the head isn't particular economical. It's packed with far too much detail. However, I really don't want to spend too much time on the modelling whilst I'm trying to learn Blender. I'll just have to see if it's workable when I attach it to a body and try to animate the face.