Allright, here is the first one: http://i.imgur.com/yhXP2Vd.jpg
I think you should add a little balcony here, ofc unreachable for both side but they will be able to throw grenades through there. CTs may could help their teammates on ramp, or Ts can fake-smoke/flash decoy the A plant from ramp. I think this will improve the gameplay from both side and won't add anything big that can unbalance the game.
Here is my second thought: http://i.imgur.com/TOg4zkN.jpg
Since there is a large gate at the A site, you should add it to the other side too, but a bit farther in the wall so Ts will have more cover at ramp entrance.
And I would remove the small box and add a bigger one next to it. That way, CTs won't lose a cover, but Ts will got one at this platform. This change may add some more to the T side but I feel that ramp is still a bit unbalanced and after a few rounds really easy to hold.
Thats all for now, and sorry for my no-so-good english, still learning (:
Anyway, great map! I like the changes overall.