The map sounds interesting, I'll be testing it soon.
edit:
Review:
Gameplay:
The gameplay is quite boring, I'm gonna be quite honest here. A lot of the heroes have the same spell, some of them have too many passive skills, it's quite boring in the beginning when you have to wait for a player to finish, since he can't actually do anything other than move forward a little and then the timer still goes, it doesn't immediately skip to the next player. I suggest you add a skill button or a command which lets you pass your turn. There are almost no custom skills either, if there are, then really few and some of the heroes don't have a custom skill at all, making the map uninteresting and not really special.
Terrain:
I could just say that the map barely has a terrain, I don't know why you even picked a desert-tile, you didn't even use different tiles, you seperated the 3 small areas with blizzard cliffs and there are no doodads at all in the battlefield area, I know it would make things a bit weird, but at least animated grass or something, which don't hinder the heroes. You also haven't used any custom icons or models whatsoever.
Other:
The map file is quite small right now, so you have a lot of space to use for custom things, like a soundtrack maybe, the warcraft soundtracks don't really fit. A custom loading screen image wouldn't hurt either.
Polishing:
No on-screen messages whatsoever, only timers used, which almost no one looks at. A preview image wouldn't hurt.
Overall:
Your map barely has anything to offer, no special features, it's quite boring in the beginning, the terrain isn't beautiful, almost no custom spells, it's just not fun to play.
Rating: 1/5
Edit: So apparently I need to use the patrol button to skip my turn. Wow... You could've said that in the beginning of the map or better, add a command instead.