This is the main spot I mentioned. For some reason I kept running right into this room (technically the one on the red side). Possibly due to the level of detailing it has relative to the areas just next to it.
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Another area I kept feeling drawn to due to the detail, even though it was a generally pointless area to go to unless you were a spy decloaking.
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I think I get what you're trying to do here, but the windows are too big and the wrong style for the rest of the map. They really should be more traditional TF2 windows. And people wouldn't go up to them and then say "hey, wait, these are windows."
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I know it's an alpha, but you should remember to fix these lights when you start detailing. They're too yellow and too fuzzy bright for such a sunny day.
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I think the viaduct influence is obvious here.
You know, if you extended those structures on either side of the point (the ones with the big circular doors to go below), you might be able to reduce both the sniper coverage and spam (at least when the CP is topside). Further, if those were tall enough and then had something overhead, you could put some crane props/structure there to explain why the point is going up and down. Think of it like an upside down U over the point. Maybe something like this:
http://i11.photobucket.com/albums/a1...ane_a6_05b.jpg
Anyway, hope that helps.