I'm not sure I like this photo. I find it to be to distracting/busy with the metal gate obstructing the view of the building. The metal also appears to be a little OoF (could be to resizing issues at 640). I also find there is more sky then building and I feel that the building should be the main subject of the shot. Without the metal fence there I think the shot was composed alright but could have done with a lower angle. Good luck in this challenge.
Well, at least we have a composition here - something sorely lacking in many of the shots in this challenge. The sky is nice as well.
I don't like how you block the top left part of the building with the foreground - it's a bit distracting.