I enjoyed the Pine Forrest map, very well done. The evening setting adds to the ambiance. I like the concept, a trade route set in a valley lined by forest.
However, I have a few problems as well. The map is too small. Playing 1 on 1 the two town centers encroach upon the middle, which is a point both sides seek to control. The play becomes one dimensional once a fort is placed in the center.
With a larger map, spread out trading posts and native villages, the valley route is still important but not critical.
I would increase the elevation of the surrounding terrain, adding to the forest valley look. I think you want to make a sneak attack via a forest route difficult, but not impossible. A few more mines would be nice. And, increase the size of the map.
Otherwise, it looks great, well done. I will play the other map later tonight.