I didn't pay much attention to the landscape, but I can create a version with various trees, etc.
Also, I arranged things a bit differently on the human lands, but the editor was being difficult and ended up deleting many things and rearranging them.
Added 28 minutes later
I played. I played as the red faction, the Orcs, against bots. Objectively, the map is a bit empty, with few landscape details, even though they aren't that important. But overall, it's good. P.S.: Add a description of which color starts in which biome.
When I played, I could only choose the faction and the bonus, but not the hero.