Head(Extruding technique)

Artwork Works in Progress
1

here is my 3rd head modeled.Not very good but im a begginer too.Extruding is the only way i can model a head.
no eyes and eyelids,also ears.
could someone give me some advice how to make eyelids.i tryid extruding them but i got weird results.

http://img318.imageshack.us/img318/9446/head26xl.th.png

2

I make eyelids by extruding, too. Could you post a wire of your mesh? A little bigger picture, too, so I can see the details better. By the way this is very good for a beginner.