Nah scenery wont work imo. we need it to blend with the BG color, so unless you can get a rock or something solid on the edge, wont do.This, and I think the engineer is a good character to put in, or the spy.
I kind of see the engineer as the face of TF2.
@StalinJr: I was going to start today with some renders, will also try some scenery which might look sweet. I already have a load of screenshots at 2560x1600 with 16xAA for smooth viewing pleasure.