koth_mountainlake A3

This is my first serious map, I've had experience making tiny 1v1 maps for fun, but this is the first with a functional gamemode meant for full teams.
I've only had small playtest on it with a couple of friends so far but I'm pretty happy with the gameplay portion of the map. I recently made some changes to try and limit the power of snipers but I'm still not sure if they are in a good spot.
If anyone downloads this, I'd greatly appreciate some feedback!
Also tips on how to do detailing because I have no idea what to do to make things look nice.

Screenshots:

Respawn room/Respawn room courtyard:

Buildings in front of Mid:

Mid:

Alternate Picture of Mid: