Even the best models out there will look crap if you don't know how to light the scene you've put together properly. Also it's the little details that can make a scene and that your image will maybe tell a story, these are the things that make it a creative piece.
Sure there are those that buy everything, use the pre made scenes and poses and just render it with none of their own input into it, they're just fooling themselves.

Injustice will be avenged.
Cofiwch Dryweryn.