This an excellant foto but I prefer the subject to be easier to recognize. The light bouning off the water as it disappears. The chain on the left adds to the recognition of the photo. Good photo.
Composition: 1, Needs to show more of the workings.
Technical: 7, Nice lighting.
Appeal: 4
Challenge: 1
Overall Calculated Average Score: 3, Without the title I think it misses completely the challenge.
If you had not described where this came from I never would have guessed it. Nice colors, interesting layout, and the highlight on the water relfection is really effective.