Nice reflection on a medium physically separated from the subject. Don't see many of those. This hurts my brain in a good way. The reflected window is topped by a horizontal architectural detail but the directly viewed one isn't. So the reflected is from a floor above, or you cloned out the horizontal element, or I need some coffee?
Nice shot, really cool. I agree with @fotoblah, it kind of hurt my brain looking at the similarities/differences between the actual and reflection. Must be from a floor above - I'm sure there's a reason related to geometry and angleswhich I spent some time thinking about until I noticed the absence of a curtain in the reflection
