Biggest problem with the naked ladies is they don't potray much. They are there, blank stare and all. Renders to me should tell some type of story, the scene has a lot to do with why the person is nude to begin with. This goes back to the aforementioned comments about composition. Doing a good nude or portrait is actually more difficult due to the attention to detail that should be done, pose, expression, lighting, background setting.

I must remember to remember what it was I had to remember.