Had a look through it:
-My sky is still the icey one. Make sure you change the sky in worldspawn as well.
-Mid looks like you just chucked a bunch of brushes everywhere, I can see how it would be good for matching, just doesn't look very appealing.
-So many lights! Maybe just give the sky a little bit of light and remove some of them.
-COOL BOXES BRO. Wait, no. meddling ugly as excrement.
I like this map a lot, seems like it could be very good for matching! (Sorry about only pointing out the negatives for me, don't see the point of pointing out the positives).