StarCraft 2 Melee Map Contest

needs improovement on the terrain

The idea is nice but the map needs more work to be a melee map.

I like the idea of fighting in shallow water... water always makes the map more fun! :) And the watch towers are well placed so that they can see the island bases.

Couple things I would suggest though is to add some more textures and doodads, and also make the pathing slightly less confusing. If everything is under water, it eliminates the map from looking nice.
Oh, and you have some small areas right beside the main bases where a tank can sit and siege. That alone makes the map extremely unbalanced towards terran, but ground units can't walk there.