I love it! Wonderful work! 
 
I agree, Brian about the replicator in Carrara - that's a wonderful tool for creating chaos in your scenes - I was just reading Bill Fleming's "Advanced Photorealism Toolkit" the other day - Photo Modeling in fact.  (A technique similar to those programs that let you take a picture and draw primitive shapes to match the objects in the photo and then projection map the photo onto the objects for better 3D realism in your still shot...) 
 
 
-Will 
 |