You can post this thread here, don't you worry. It falls under the correct category.
The pictures for Vespian fail to work so the extravagant detail you're hinting at doesn't register to my eyes. However, the programs I know are usable for making maps are: Gimp, Paint Tool Sai, and Photoshop
I've never known someone to have made a Feral Heart map with Earth Sculptor. It wouldn't hurt giving it a try. Let your curiosity perhaps find another usable map-making program.