I think these are too dark and underexposed. That look works well if you have something else in the frame that is lit and keeps the interest of the viewer. These don't really work for me from an exposure or composition point of view.
I can see what you were going for and this location has alot of potential. The first shot would be really cool, imagine that perspective with the ground and maybe the "roof" being partially lit up, and fading into shadow as it gets further away. From a textural point of view the window shots are pretty cool, the 3rd shot done as a pano would have been neat, but some of the windows are cut off. Anyways, I'm not trying to put down your photos at all, I can see what you were going for and I think it has tons of potential. Thanks for sharing and post up some more of your work.