I had the same thought about the compass. It would look great on a Federation or other sci-fi map. It seems a bit out of place for Greyhawk, but if you like it, it works.

Things I like: the forests, your font choices.

Problems: The mountains (and in just a couple of places, the hills) have overlap that doesn't make sense. You see through the mountain to more mountain behind it. This can be cleaned up with the eraser and I think you'll be pleased with the results if you do so. Another option is to redo the mountains and space the symbols out a bit more. After all, when you're repeating the same symbol over and over, you aren't showing individual mountains, just marking the region generally as "here there be mountains", so the spacing is arbitrary.