One thing I noticed when browsing the DAZstudio section is there aren't very many environments/scenes... I don't know a ton about 3D and am basically a novice, but I think there are some programs for making those, such as Bryce, etc.  I may take a stab at making some building outer shells through Sculptris but I'd probably need somebody else to do the materials or possibly hollow them out to make an inner layer of structures...

Any thoughts or suggestions?