This is just to help me gather information - I'm not 100% sure I'm going to run a contest, and many things would still have to be decided, such as how best to promote it, the prize money, and so on.
As to the subject matter, I may still decide one way or another based on a number of factors, including which choice is likely to generate the best response among artists. With all of that said, I still value all of your input!