You have a great thread going, interesting to see the different experiments on your map. While the first WIPs with textures were nice experiments, I like the hand drawn style you're working on now much better. The mountain ranges really flow through the landscape, and the forests do too.
I do have a nitpick: you might want to smoothen (is that a proper English word? :/) the border between mountains and forests a bit, especially where the forests are south of the mountains. The stark black of the mountains contrasts quite a bit with the forests, and it doesn't look as flowing and natural as other parts of the both the forests and mountains.
Keep up the good work, it's great to see where you're going with this