Fits the challenge nicely. I might have cropped it up from the bottom one floor and cropped off the the area on the right with the white wall. I think you would get more interest and see more details with the tighter crop :)
Looks very familiar in the neighborhood in which I live. I really kind of like the "connect four" kind of aspect to this/ I think you could push it just a little here by overemphasising sharpness or contrast..
Almost a great image for me. The repeated patterns, interesting colors (blue, pink, orange from the rust) make for a great subject. However, I find there's a bit too much going on, and some of the detail in the scene gets lost because it gets so small. Perhaps a tighter crop on the most interesting part of the image (lower right?) to force more attention?
I can't decide whether or not I'd have cropped out the different pattern on the right or not.....I think either way it's effective.....I just wonder.....7