Wow, that's a good map all by itself, snodsy, with just the points and borders to see where things are. Like a good clear touristing reference (minus how to get there, of course). If you're including all of those points in your drawing then I'm extra impressed. If you should want some other sources of inspiration (or you may have already found them) I know of a few good oblique and panoramic maps of those regions. They might not be from the same angle but it may give you some further ideas for rendering them. ?