Might work a little better if the tower were off to one side. Reminds me, I should take a wander up there when there is snow on the ground (only a few minutes away).
Nice picture, the sky is a bit blown but a nice affect, also would like to see this a bit more to the left or right, that would really make this one stronger. The subject is fantastic.
You chose a very difficult photo for the backlighting. Get the deatil in the tower and lose the sky, or get the sky and lose the detail. You did a pretty good job of finding the middle ground. I think framing the photo so that the tower was to one side or the other would make the photo more dynamic and give it better balance.
A bit overexposed with the sky, and I might not have positioned the building quite in the middle, but perhaps a bit to the side more. Neat structure with all the colored stones that works well against the simple sky.