If it is just for fun and for free or just for you great, but if you want to sell, it, I would love to see some better uv mapping. I know that uv mapping is not fun at all, or at least I didn´t yet figure out a fun way to do it, but it is very important and basicly the only thing your models are missing.

Lite-C Tut. 1 Lite-C Tut. 2 Lite-C Tut. 3 (en)
Shader Tutorial (ger)

http://www.slindev.com