I believe your map is looking great so far, and I do understand this map is not complete. I like your ideas and some of the entry points as well as the Tuscan and Mirage feel to parts of the map.

First I'd like to say these are speculations more from a mapper than a competitive player. The only testing I did was done by myself with a stopwatch and such. My issues/thoughts.

As others have already kind of said, I think the CT's have too many vantage points. CT's seem to have much more control of the map. Terrorists might need something more for protection at A (catwalk entry?).
I believe a few areas in the map should be re-sized. Areas such as CT halls to A, B site in general, and the Tuscan style ramp to B feel a bit small. I think upping the size of those areas would make the map look more cohesive and feel less congested.
Lastly, in the final version of the map I hope to see refreshing textures. Dust textures are very boring and overused, but of course that's just my opinion.

I hope to test out your creation tonight, and I look forward to seeing the final version.