I have to say that I like this style. It is different and not my favorite, but I like it. It has a sort of natural feel to it, and some of the areas really peak my curiosity. I think the one thing that needs to be addressed is the rivers. They don't 'flow' right. (excuse the pun) Maybe it is the haziness, or the color, I'm not sure, but they seem out of place with the rest of the map.
What app is this being created in?