I have finished Part 3 of the tutorial revision I’ve been working on. Part 1 showed you how to create the basic landmass shape, and some techniques for generating a random map if you don’t have a sketch to start with. Part 2, showed you how to color in your ocean/sea, and how to color your landmass with textured grass and dirt. Part 3, posted here, shows you how to create mountains and forests on your map.
Here are a couple of shots of the example map from the tutorial, showing what you get at the end of Part 3. The first shows just the snowy mountains:
And this one shows the mountains and some forested areas:
I hope you enjoy working through the tutorial! Please tell your friends about this tutorial–but link back to me, please, rather than just passing along the files. Thanks!