Today, I sculpted the topography, WILBUR-ized it, and bump-mapped it. I'm getting better at shoe-horning the WILBUR-made rivers where I want them to go by tracing the source map rivers with a black airbrush for several passes with different brush sizes at about 30% opacity, and doing some follow-up sculpting of the surrounding areas. All my planned rivers turned out as I wanted them. There were a few unintended rivers (including one big one), but those are easy to wipe away if the client doesn't want them.

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I haven't had much guidance about climate by region. The client said that black and white is fine (I'll throw in a color gradient and greyscale it afterwards to give it a more-natural look) for topography. I have a few ideas for how to do borders; we'll see how they work out.