After seeing what the subject actually was, I'm impressed with the idea and imagination. Very unique angle and I like the added images (grunge) added to the photo. Very nice work. Very creative and abstract. I like it very much.
I keep returning to this image of yours ... aside from the fact that it demands attention ... I think ... oh oh ... here I go again ... the base image and presentation is quite good. I do like it.
Maybe if you pulled back a bit on the overlaying brush work and let the stairs come through a bit more??