I got lucky. A lot of time it generates junk.

On this one I flipped the output vertically and rotated it 45 degrees or so CCW to get it all in the right place. I usually move things around a bit to suit. The real trick, IMHO, to using this thing is to use Select-Color Range on the output image for each of the components and then make that a separate filled layer. That gives you base layers to work with for your map. I'm considering a hand-drawn map, though, so that may not matter here.
M