I like the composition, but the artifacts on the church (?) hurt this. A shame, but I love what you tried to do here. The textures on the church serve to make this look alittle rough. I'll be interested to see which camera/lens you used.
The colour of the sky is good, I think the exposure may have been a little too long perhaps? I think it's a cropped a little too much and needs more of the doors in the photo ... maybe taking the photo looking up one of the towers?