Nice, although I would reshoot or crop the sky out. I think it would be more effective as just a big crazy maze of windows, doors and columns without the context of the sky. doc
I like this one but I would dodge the reflection to get the exposure more even with the building. I do and do not like the sky it really depends what you are trying to do. Without the sky like the above poster said would be a big maze which would be cool. But with the sky it brings you back to reality.