It could be any tileset.
Map size is 64x128.
Mountain should be almost all or cover all of the map.
I know most people will just say, "do it yourself" and "you'll never get better if you don't try." Well I suck that bad.

None.

Morphling
NudeRaider -- blessed innocent soul knows nothing of the strife we had before EUDs were discovered 
DarkenedFantasies -- Probably just didn't care. For example, at some point before release, they've updated the graphics of some of the Protoss buildings (Forge, CyberCore, Citadel, Observatory, Arbiter Tribunal), but instead of properly re-rendering them with edited 3D models, they did crappy copy-paste jobs on the rendered graphics.