I am concerned about the lack of wood in the starting position
Also, 2/3 entrance to the main being bridges, and the 3rd one is lowground, not too sure about it (although i know there is a lot of space in front of the base)
(considering also 2 bridges are path broken, need to be fixed)
The expo.. i dont think such a hard camp is justified in this kind of map, i would tone it down a little
Poor ne, will have a hard time AoW creeping even smaller camps ^^
There are 4 points where the terrain is unpathable when it should, in front of the expos; I would also suggest avoiding small doodads which also block pathing (the things in front of the goblin labs)
A little consideration, air harrass semms hard both on main and expo, due to the small room/sight blockers behind them
Overall i like it, especially the fact that is is quite open, considering the distance between camps it is not that easy to lvlup quickly, and also to control the enemy, also due to the distance between neutral buildings.
Also, change the patch used to "last patch"