|Hello from the Critique club, my name is Jon Rowe, and i will be looking at your image this evening :)
Composition/Lighting : i love the film grain look to this. i gave you a 6 on this, but you did end up getting a fairly good score. composition-wise, i think that the vanishing point is positioned too high on the image. the main focus is in the middle of the abstract object, and that is where the eye wants to stay and focus on. the left side exiting the photo is also somewhat distracting, which is a few reasons why the sub-6 voters voted as they did.
Challenge : It most definitely fits the challenge. there is really not "wow" factor though, for the viewer wonders what it is, and then is through with it. No disrespect meant whatsoever. i did not enter this challenge for it really seemed to be a difficult one, so i commend you for entering and trying. you did a great job. 5.5 is not a bad score at all, and i would be proud of it.
Conclusion : Very nice job. You found a very interesting vanishing point and presented it well. This is a great addition to your portfolio. Only nitpick would be as stated, messing around with the composition here and there, and maybe a little contrast boost throughout.
Keep on shootin!
Good luck on your future challenges:)