I would like to see a search filter for pixel vs vector art :) Should be simple enough; An extra tag option when uploading and field in the DB.

I mention this because one of the first things I noticed when coming here for the first time and searching for media is that I was skipping pixel art immediatly, because it simply did not fit the style of game I was going for. I was looking for smooth gradiants, giving the 2D toon shading look, which was scattered over several pages of results.