SC2Mapster

Alright, I gave it a spin. Well, obviously you haven't gone for an exact replica of the original. I mean, that's cool, the basic idea of the original is there. I noticed an abundance of drones & resources right at the start, which is refreshing, bigger battles are almost always better.

Speaking of bigger battles though, since you're not going for the exact original layout you might want to add some more Terran in there, and attack waves like Wildferocity said. More stuff to kill would be an easy thing to add, at least. The map layout seems good and able to support some more action across the map. Oh and, Zasz's portrait was pretty funny, I liked it.

EDIT: a small thing, but what you could do is check the "wait for key" checkbox at the loading screen options, so the game doesn't start after loading until the player presses a key. I just think it's sort of user-friendlier that way, especially on bigger maps with longer load times so people can go grab a drink or whatever while the map loads. =P

You need to learn how to add attack waves for the AI. In all your maps, the AI does virtually nothing and is very passive...it's no challenge.