Here are the promised Screens:

new colors:
http://img484.imageshack.us/img484/8199/shot0fx9.jpg

http://img484.imageshack.us/img484/8987/shot1ij0.jpg

I need more lights here
http://img241.imageshack.us/img241/1114/shot2pn4.jpg

still unfinished, but posted to show the level-structure
http://img78.imageshack.us/img78/7512/shot3xw2.jpg

a cave-level (i'll have to rework this, with models to use shaders)
http://img441.imageshack.us/img441/1020/shot0wb7.jpg