Yeah theres alot to improve on. I think you need to look at facial anatomy as a whole and how things line up. You shouldnt even have contemplated a texture this early on. Get over to www.3d.sk
and have a look at Loomis's drawings of facial anatomy. These simple basics will help you judge form and placement.
Also poly count and time is really irrelavant too right now, when the fundamentals arent there.
Turbo Dans example is good of the profile take note of it. But if you can get photo reference then do so, if not I'll post some up
Sorry to be so harsh.
I'll swing by later to see how its going
Cheers for now