A few things

[dumpling]

I just wanted an honest shot of the persons face, but which kept you interested. Meh...
My monitor is very bright so hopefully they don't show up too dark on other ones.

http://img519.imageshack.us/img519/8449/front11uv5.jpg

http://img217.imageshack.us/img217/876/front12ox4.jpg

http://img208.imageshack.us/img208/5325/front6uk9.jpg

http://img122.imageshack.us/img122/3744/front12fz3.jpg

http://img151.imageshack.us/img151/1219/front4to9.jpg

[Grumbledook]

they all seem a bit soft to me

I would also look into playing around with lightsources more