Update 4/5/2013: I decided to ditch Ascension's style. I like it a lot, but I thought it might be better to go with something a little more unique. I've also just decided to use the land shape as a base. There are a few minor variations from the sample map, but nothing too egregious I hope. Took me a while to get this far and I am still not 100% happy with the mountains. They appear too randomized. An earlier attempt had them more controlled, but there were so few of them on the map. I might go back for another crack at them but that would mean I would basically be restarting if I did.