Very nice indeed, and personally I like the green water. It gives the terrain character, to distinguish itself from the rest of them high res terrains out there. Personally I like the second one the most, and I find myself wondering why the second one and the first one are the same place only altered, seeing as this is a playable map. Is that something that will change in-game?
Also, the mountains are fine, not perfect, but realistic enough. Snow wouldn't be necessary, in my oppinion.