By George, it's Star Wars revisted on the outside, 2004 DVD on the inside!

Seriously, simply darkening the window doesn't make it look any less like a composited shot inside of a matte painting. If anything, it makes it look even more obvious. I think Ady's screen cap looks just fine, although I will admit that a bit more reflection on the glass could sell the shot a bit better.

As a side note, Ady, looking at the 2 shots you posted, is there an inconsistency between the exterior and interior views of the roof? The outside shot clearly shows that little lattice-like structure atop the room, but in the interior shot no such structure is visible through the ceiling's windows.

Edit: Gah! You just beat me to it ChainsawAsh. Was the building really different pre-SE?