The TOS here are fairly generous and there are a lot of pictures one could make which, while not technically infringing the TOS in any way, nevertheless would be quite inappropriate for this site. Speaking as one frequently seen at the two sites mentioned above, I think it is better to follow the spirit of the Renderosity TOS rather than the letter. I incline to disagree with Lyrra about the relative merits of those two sites. Renderotica is more varied in content and quality.