I like the treatment, but you should have used all the available pixel size in one direction. I'm afraid your score is likely to get beat up for the size.
promised myself I would comment on all pictures that I score low , well , I think the idea was good , don't see enough detail, too grainy , too small.
I suppose that it meets the challenge so a 2 for that reason only.
An interesting idea, but the image is too small and not detailed enough to score higher. If it were larger with a little more interest, it would be a good solid entry into the challenge.
your photo is very small for a challenge...think I would have liked this better left in color as the color would added to the depth of texture rather than monotone