I think this one was on the border of doing really well. I gave you a 6 because of the good composition and details. I think the voters found it a little over processed, myself included. I think if you dialed it back just a tiny little bit, this image would have done a lot better.
The subject matter has potential, but I think the processing didn't do you any favors. Not being a processing expert, I can't really put my finger on it, but something about it makes the image look really busy. Sorry for my vagueness.