For a short campaign, I think it's good enough. I'd spice it up a bit f it is for a longer story though. Personally, I don't care for the font, it distracts me from the map's features. but that's just a matter of taste I guess.

I'd probably make the trees a bit smaller and put in a few more to indicate the forest - they look a bit big compared to the mountains. Or do you want to show very large trees in small groups?