Jeremy, I agree with Eric. This is the kind of shot where you can't afford distractions. The viewer's focus has to be on the subject, which, in this case is the grain in the wood and the hardware. One caveat, though. For this to work well everything has to be tack sharp. On my monitor it doesn't come across that way, though I doubt it's possible to make sharpness determinations on the basis of a compressed, downloaded jpeg. The mat could be white-core black as Eric suggests with his black border, or it could be straight black. I guess I'd try it first with a black mat.
I do like the picture. It's the kind of thing Charles Sheeler often did -- both with a camera and with a brush.