Hi there,
just wanted to add some comments as requested.
While the overall composition is good, the first thing I realize is that you seem to have some issues with the focus, the picture is not as sharp as I'd expect it to be. Furthermore it lacks a bit of contrast and the overall picture is a bit too underexposed for my taste. I know that you probably did that on purpose, but especially the dark areas could make use of a bit more detail. Finally, you got some serious artifacts in your picture, I am not sure if they are compression artifacts or sharpening artifacts or artifacts as a result from the upload on some limited webspace, fact is they are there and they shouldn't be there.
I hope this helped a little, if you keep working on the issues, I think you can get something out of a composition like that.