Composition
This image has several interesting compositional features. Obviously the circles are dominant. The fact that one of the circles is "cut off" seems a little bit distracting and weakens the image a bit. You've chosen a good perspective from which to emphasize the "tunnel" idea.
Background
There is very little visible background in the shot, but I suspect you've made a wise decision to crop out some distracting elements.
Camera Work
The depth of field seems to be fairly deep, which is surprising at the f/6.3 setting you used. It's difficult to determine your lighting setup, due to the saturation you've emphasized, but the shot seems to be lit well. Exposure is perhaps a bit dark, but I believe you may have done that intentionally to use the colors the way you have.
Post Processing
The shot appears to be the recipient of some fairly heavy saturation boost and a good bit of sharpening. To me, this yields a fairly "artsy" look while strongly emphasizing the industrial qualities of the subject.
My Impressions and Opinions
This photo doesn't really tell me a story, and it isn't clear what it is. I would almost call this a shape based abstract. You've scored well, and many viewers comment that they like the shot. That in itself is a strong indication of its appeal. You've used colors and shape to catch and hold the viewer's eye, and that is a good success story.
Nice shot, I have taken several shots of similar subject matter. You may want to try cropping so you just have the metal in the picture no background, alot of times it creates an interesting abstract composition.
Nice modernistic feel I think if it was shot closer up a bit sharper and had some of that wonderful texture popping out at the viewer this could have been ribbon material. Good luck
interesting shot of some unique materials. meets the challenge well. the colors look a little oversaturated to me and I wish the bottom left hole wasn't cropped off so much.