In my opinion, this map is a bit unfair in terms of neutral buildings. Both players should have equal access to shops and mercenaries. Another concern is about creeps. An ideal net level of creeps for a 2-player map is normally around 200 but I don't see sufficient creeps here. Try adding more orange zones! Good job
Ye, I also suggest you add one more entrance to the expo. Since there is only one entrance, it will provide an impregnable defence for those who try to protect it! And remove the ramp on the top left. It is also an unfair element that renders attacker 25% chance of miss!