I love the lineart free look! Very unique and distinctive style. I especially enjoy the details of the little settlements!
As a fellow Finn I also like the names, some of them have that little Finnish echo that I sometimes like to add to my own work as well.
At least on my monitor, I'm not really seeing much of an issue of underexposure on this one, I personally think the colours look perfectly fine. But as most people around here could tell you, I do love my dark maps
My only little nitpick would be about the compass rose - I can maybe see it as an attempt to make it match the overall perspective of the map, but I think it just ends up looking squished in a somewhat jarring way. I think that's really the only thing that bothers me here, otherwise I think the look is extremely solid.
Hienoa työtä!