Map is great and probably the most likely community map to make it into the map pool since Cache. There are a few things that are holding it back gameplay / readability wise.

A lot of boxes, specifically on A, are 72 units tall. Every map I've played I've heard 'why can't I jump on this box' several times. The one at the top of mid near stairs is the worst offender, raise it to make it obvious that you need a boost, or lower it to allow people to jump up.

An even smaller thing is that the clipping in some areas is a bit to aggressive. The corner at the top of kitty looks like you could tuck in, but the clipping prevents it. That could lead to a few unfair deaths. Either make it tuck-in-able or make it obvious that you can't.

I'm sure you probably know already, but the area behind lower B looks pretty unfinished, you can even see dev textures if you jump. There is also a doorway in CT which leads into dev textures.

This is the best looking map I've ever seen and has a great layout. Keen to see it improve with all the playtesting it will get in MM :)