zeta

Your large buildings will obscure any air unit or flying building.
Your main base is incredibly vulnerable to liberators and drops.
The natural has many different cannon spots (Try to have at least 3 cells behind everything)
The inhib zones seem to just kind of be planted in major movement regions for the center. I can see that you want to promote players from just winding around, but the paths seem to be longer than just walking through the slowed zones. In combat this might just make surrounds more difficult and do little else.
I think zones will be more effective and unique when used in the way you did towards the sides with the half-slowed ramps. I think you should explore this method instead, and perhaps with a more unique middle than just a straight line down the center.