lovely lighting, and whilst I amm not a fan of sepia I feel it does work here.
Compositon is good, but your focus appears very soft maybe trying to get in too close!
Compositionally, I like this shot. The different circular elements set up a nice balance and contrast. Also, I like the tight crop in this.
The lighting on this is really good. It emphasizes the shapes and textures nicely. Also, I like the basic bw on this.
I think if focus had been a bit stronger, at any point in the photograph, the shot itself would have been more effective. While I don't think EVERYTHING needs to be in focus, it would help if something was clearly in focus. It does appear that the far right of the element on the right is more in focus than the rest, but it is difficult to tell.
Nice approach to the challenge, and the lighting in this (again) is really good.
So here's my problem...without the benefit of a challenge, I would have no idea that this was a camera. Not saying that the shot doesn't have merit, I just never would have seen a camera if I saw this in a different environment. So, if that was your intent...YooHoo!