Great template. I really liked how you decorated the world trees and the parts below the water (rarely seen that before). However I found some things I didn't like:
1- Why that snowy part? It's completely useless and just takes up space for nothing (about 40% of the map) and also increases filesize for no reason
2- Looking at the top right corner, I found the cityscape part pretty empty. All those broken archways but nothing between them? Kinda bad I think. You should firstly remove the pathing texture of those archways and add pathing blockers. This will allow you to apply more doodads in between the archways themselves, something you cannot do right now. Some benches, banners, obelisks, runes and such things will surely improve the look of that part
3- The roots of the world trees lack of pathing blockers. My troops can pass through them like ghosts
4- Oh dear, that world tree below the "dam" is overscaled. If this is going to be used for a playable map, that part will be extremely annoying. The camera sight gets blocked by the huge trunk and the red flowers on the trees
5- The fog is too weak. I set the Z End of the fog at 8000 and it was almost the same as the 15000 you set. I'd suggest putting the Z Start to 0 and the Z End in between 5000 - 8000 to create a noticeable fog
Overall I appreciated this map. However, since there are some vital issues that need to be fixed, I'll be giving 3/5 (fix them, and nothing will stop me from giving you 4/5 or even 4.5/5) but I'd still like to vote for APPROVAL!