I dont like how B is, that one stupid pillar, you could make something more interesting maybe like the little structure at the centre of B on Mirage just to give some more angles take cover from.
I also dont like the stairs angle. Headshots angles in general suck.
Id make the site a bit bigger and add something to the middle of it and remove the stairs and just have it be a straight wall.
On A site I dont like how close you are forced to peak from some of the boxes on the site. I dont like the little holes in the wall.
I would say A isnt as bad as B but neither are good. The rest of the map is fine, maybe open up the awkward connector into B, I hate how close those angles are, you basically cant use them as people can see your shoulder and kill you before you can see them. In general close angles are suicide and its loaded this them.