that is an awesome zombie. Did you make him? Your game is looking cool. I agree you can work on lighting, some well placed lights can really make your game stand out. I see many people making their levels so dark in places though you dont even see anything, I think try to avoid that. I think you have a great start!
Edit: I been looking at screens the past couple of days wondering why everything is so dark. I adjusted my screeen settings and now I can see everything better. I needed gamma correction. Dumb me :o
Dennis The Frogman
www.3dfrog.com