Terrain: You pretty much use just 1 tileset for the entire playable area, you have overplaced special effects, you use mushrooms and snow trees (which don't look good in their area's environment), and you have overplaced special effect doodads. Try adding a larger variety of tilesets, add environmental doodads, try using different types of trees that look better, and remove those ugly special effect doodads (they're not really ugly but they just look ugly in this case).
Idea: It's a pretty boring idea and ap0calypse said this only yesterday:
Gameplay: It seems that all you try to do is chuck units at each other with a shared income (which I don't like) and to win, a unit only has to enter the opposition's victory region, which will cause 1 minute games. Also, I don't like it that you have to use the same boring blizzard units that all cost the same price (so people will take advantage of this).
Triggering: The triggers leak (
http://www.hiveworkshop.com/forums/general-mapping-tutorials-278/complete-list-things-leak-126761/), you have used the useless action "Do Nothing" in several cases, and there are many triggers that can be combined together. You should probably use loops (if you don't know what they are, please learn about them) to reduce the number of lines too.
Overall: Nothing special about this map, has bad triggering (but it's not horrible), gameplay, and terrain as well. Before uploading a map, you need to think to yourself what the person playing this would think of your map and improve in those areas.
Voting for:
REJECTION