Ooooooo! Very pretty! My first thought is that this is from a video game or something. Kind of like a WarCraft 2 map or something like that. The snow texture is spot on. And dude, the underwater ice flows are just sweet!

One think I am and not a big fan of is the "rigidness" of your mountain tops. Of course, this is a personal preference, but there is very little variation or breaks in the ridgeline which might indicate peaks, dips and grooves, ie height, slope, and directional differences. What did you make this map in? I assume you used GIMP/PS and ran the mountains through a bump map filter?

Joe