Well most of this work is pretty damn good, though Im bloody shocked that Tank is 300,000 polys!! My subd characters at Level 2 are less than that on conversion!!

Christ I think we need a challenge on here somewhere to build the best looking tank with under 100, polys.

As far a s the Panzer goes texture wise, the color is fine but as Turbo Dan said they look flat. Though in my opinion it needs a bump map and above all a specular map to set of some of the metal and especially the cylindrical bit and pieces and also to sell it as being real. The Town needs some good lighting, perhaps a very bright backlight and a good fill light at the front with some nice shadows.

If you are having trouble with it as one scene create a proxy object (lo res) for everything then once your lights are done export those along with you camera and then position the objects in separate scene with all the same distances and render them alone.

Jay