There are terraining forums around here, this is the place you need to be:
Terraining Board.
The terrain itself is too plain and empty, you didn't use enough environmental doodads, the road was a bit dissapointing at a few places, where it was just a flat road.
The NE village didn't look night elfish enough, the lumpy grass would be better there (I think).
The edge water - land wasn't really good, it should go more smoothly, now you've a got a cliff which instantly ends in water.
Some blizzard cliffs weren't positioned really well and I generally don't like them for my own reasons
In short: use the raise/lower tools a little bit more, add environmental doodads and choose the tileset more wisely.
Not bad, though... but it's not supposed to be in the map-section
Edit:
If you want to create really good terrains, try looking at these masterpieces:
Legendary Terrains
That thread is constantly being updated with new terrains, some of them don't look like warcraft at all and that is, of course, the whole point of a good terrain

You will probably say "WTF?" when you see it... now, try to imagine that feeling and create something yourself that makes you feel the same way ^^
If you want to create template terrains instead, that thread might still help you.