Suggestions?

Obviously, there's a space that needs to be filled here. I'm thinking probably not natural wood because of the wood counters and orange walls (a bit too much, I think). I had thoughts of making a thin frame out of various shades of green glass subway tile, but haven't found the right size or colors to make it look how I want it. Also had thought about a twig frame painted white, but currently have no twigs. Something modern and simple would be nice. I'm looking and coming up empty. Any suggestions??