From concept to completion, it averaged 3 weeks per enviornment (some took 4 weeks). It could have been much faster, but I was the only enviornment artist. Adam textured some props for me (check his thread), and I had one guy at work (Andy) finalize some of my textures for me. It would have been a lot faster (and a hell of…
Oh yea, forgot to post my constraints I was given a max of 10,000 tris and 1.2MB of texture. The MTV enviornment went a smidge over though, in both aspects. I believe it was around 11k tris and 1.4MB of texture.