I love cross-section maps. In many cases, they are much more evocative and inspiring than ordinary maps of the regions (I'm not talking about dungeons and hexcrawl). And Pain rulebook will contain mainly such maps.
Also, I realized that I made some progress with my maps. Here is an example from January 2012:
And here is the most recent one I made for my current project:
Of course, the second one is much more abstract. But I fell in love with artpunk.
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