Interesting shot. I tried one like this myself a while back... ditched it because I couldnt get it to look how I wanted, so I'm probably not the person to give advice Still, its a neat shot.
A little dark for my tastes, but I do like the idea. Did you do more shots? If not, I'd reshoot and try TONS of different angles, lighting, distances, ect. You could probably get a series out of it.