I talked (emailed actually) a fair amount with the designer and publisher to get a better idea of what this should look like. They wanted a more-or-less green map as they were going to have counters that would be predominantly white with red and burnt orange colours and they wanted the green to make them stand out. There are three different kinds of man-made terrain- castles, cities, and walled cities.
Last night I fired up the ol'espresso machine and went at it for 4-5 hours strait. By the end of the night (early morning actually) I had made up the following map. Looks pretty good I think. I used some good tips picked up here on the forums to make the mountains, which I think worked out great. The cities are grabbed out of CC3. They look a bit out of place I think. Have to fiddle with them still. Maybe they just need toning down...dunno. They seem out of place somehow.