It's not a bad start but 1 thing is for sure and that is that the poly count is way to high. If I read it right I think says close to 83,000 Faces\polys.
My suggestion would be to start with this tutorial here (
http://cgcookie.com/blender/2011/01/14/human_base_mes/) to learn the basic shape of the head. Then move to this tutorial here (
http://cgcookie.com/blender/2010/01/28/topology-overview-the-head/) to learn topology of the head.
I only followed the first link and tend to work things out in my own way and made a 600 poly head (see image below).
Sorry if this tends to hijack your thread mate, and I hope it helps.