While both maps are quite nice, for me the one on the right is more my style. I don't think wouldn't be terribly difficult to give that some 'depth and detail' (for lack of better words) to "spruce it up a bit.

But since you seem to prefer the hand-drawn, iso style you might look on the Dunjinni forums in the ISO user art thread, you may find something that'll work for you or better yet some inspiration to make your own.