I see it. This photo is interesting and original. I like the grainy look. I think it would work with a little more contrast (althoug the gamma on my monitor is high).
Striking lines, made moreso because of the contrast in this image. Pi is certainly to be found
in circles, though I'd like an even clearer connection. The image is also slightly out of focus.
sorry - ain't seeing it. also is the focus a little soft or the photo overexposed. the center doesn't seem as crisp as it could be for this type of shot (but you do have some symmetry ;-)