Wow, very nice! The only minor "criticism" that I have is that, if that's basically the "known world," the whole thing is a bit too square. Now I have the same problem, so it's a minor quibble- it's easy to create the world within the framwork of the 8.5x11" mindset of a peice of paper or computer screen. I've been using Fractal Mapper v8.0 and one neat feature it has is Globe View. Your map can be displayed on a spinning gloe; this really helps visualize it in terms of being on a real planet. Not useful if your world isn't round, of course.
Overall a very fine set of maps.