I think you got the composition right here Skip
In fact the composition is the strong point of this image.
I would have preferred a more even lighting, as I find the bright patch of light on the RHS quite distracting. I would've liked also to see a bit more texture, and I think this would give the image as a whole more depth + perspective as well. As it is, I can't figure out which part of the structure is closest to me or indeed where each part is (on the z axis) in relation to the other parts; I'm particularly having a problem assessing the placement the wall which is at the LH edge of the frame; as I look at it, it keeps swimming to the front then floating to the back!
It's an interesting abstract which I think would benefit from more texture, depth + perspective, which I think you could achieve by trying to get a greater tonal range out of the parts that are in shade. Of course, that would've been easier for you to do in-camera if you didn't have the high contrast caused by the patch of bright light on the RHS. Basically you have 2 dominant tones here, but not much variation of tone in between; my guess is that you have a histogram which has 2 or 3 spikes, i.e. the tones are very unevely distributed.
I like the compo, which is quite arresting. This is because you have a mixture of round shapes + straight lines together in the same image. In composition + design, curved lines + straight lines are a conflicting mixture by nature - not necessarily in a bad way, but they do need careful placing within the frame, and I think you did an excellent job of it here
All in all, I like the image Skip, I just think it is let down by the high contrast lighting which resulted in burnt highlights on the RHS, thus inhibiting a full tonal range.