This is a nice shot, I like how the trees come around the building. The colors of the trees are very nice, and the building is neat, i like how you can see the texture of the brick on the building.
I like the concept of shooting the building through the tree. However, I don't think _this_ tree was a particularly good choice. Had it not had quite so many little tiny branches to clutter up the foreground it would have been much better. I do like that the building itself is very clear, and I like the colors in this one.
Of abandonment, decay, regeneration. The circle of life. It's among the most hopeful shots in the competition. Its strengths may be more symbolic than graphical, but that's still worth points in my book.