Ok here are my thoughts on this.
-the upper left player and the bottom left player are much closer to each other than the one on the right
-they are next to tiberium which is a plus
-the map has very little LAT detailing (ground types)
-like said the cliffs are kinda repetitive and there may be some errors but i dont know as im basing off of pics
-i would say something about lighting but im not too sure as it seems to me those pics were taken while in FinalSun and not during actual game play
-water looks blocky to me
-some of the cliffs look a little squarish
-and i dont like the fact that the GDI base in that one picture seems to be a full fledged base. such as it has an ion cannon and a radar and probably other things in it that would give the first person to capture those a much greater advantage.
but like you said your working on multiple versions to fix the problems that are found in the earlier versions which is good.
just make a few improvements and add a lot more detailing and it will look good