Just a z doodle i started on this mourning. Only a couple hours into it so i havent added much detail yet. Base mesh was created in Maya. Any crits or comments are welcome.
I like the idea for this one and the nose (I always have problem with the nose, seriously i have nightmares about them ;))
Some toughts, first of all I think the face looks li little elongated (sp?) ie. distance between nose and ear is a little do big.
Put in a few more hours and it will look great
Your of to a good start 
Looking forward to updates
(sorry for my poor english)