I have studied you photograph for several minutes and find myself at odds with it. It's nice, has great lines, color, focus, and tilt making it exciting to look at but do not see how it fits this challenge. I don't want to vote your photograph low because I can't find a way it meets the challenge so I have to skip voting on your photograph. Would of been great in puzzle macro. Good luck in the challenge, it is a nice shot.
Oh I so hope that you dont get hammered for the tint by the voters. I love the fact that I still dont quite know what I am looking at (which makes the fact that we are meant to be looking at the side of something less seen even more apposite. Are they stairs?
I really love this pic and if it does not score high then please dont feel fed up as you made at least one person stop in their tracks and go 'wow' 9