Very nice, love the composition and space. Its so gritty that I feel like I need a shower just looking at it. How did you take the shot without stepping on a needle? lol...
I do agree with the comment above about the blue on the right. It's conflicting with the warm tones in the rest of the picture. Overall though, dig it!
Great HDR!! I like. Agreed with that window issue but that is so easily fixed. Just use your original exposure and mask in a better window/sky. You may have to adjust the original exposure but once you fix that you have a winner. I really love images like this!!
I like the vertical verticals. I'm impressed that you got it without post processing. I agree that it's just a bit too dark. And the window could use a bit of work. Otherwise, very nice.