Yep, can be, at least the road is right - 5mm, so 6m real life, think the tree crowns would be a bit bigger, but not wider then 6 m in diameter. That's not a problem, I'm just sketching out ideas)
I want to refuse from the hex markings, do those 1502, 1503 etc. really being used in the game? I can mark forests with a tree symbol - 1for a light forest, 2 - heavy, 3 - extra heavy, if that's needed
Updated the pic