The lighting is not the best, but I added a first layer of metallic gold paint on the side walls of the niche. It looks great not in this photo of course, but trust me the gold and the purple really pop!
I need to find my stash of barbed wire bits and pieces, there's a natural crease line in the timtex about a third up from the bottom that seems like a natural spot to put some barbed wire. As I've been painting this piece I've been contemplating what other colors and embellishments I want to add to this piece, aside from the tiny bit of barbed wire I haven't come up with much yet.