Very nicely seen and captured. I think it would be nice to try and perspective adjust this; I think it might also be stronger after that if it were cropped along the two hroizontals: the bottom of the building and the moulding just above the windws (just something to think about)
neat contrast! interesting subject and a great sense of how the quality of light will work when captured by a camera. i'm a little disturbed by the out-of-square framing.