I like this subject and the colors, but not too crazy about the HDR treatment. I also like the fact that I can't tell if I'm looking at the inside of this place, all the way through, or reflections of outside, adds to the suspense.
This is nice, but that one doggone shadow in the upper right hand corner somehow keeps stealing my eye. Might have worked better to crop out the bricks entirely. Good luck! I'm giving you a 9.