I'm now taking a stab at a more complicated regional map - the Imperium of the Triumvirate!

This one is a shape that leaves lots of empty space in a rectangular image, so it's getting a little more lore and historical details. This is also a nation with sub-regions, and I'm still thinking about how to do those in a style that stays closer to the Mariner Worlds regional map than to the overall galactic map.

CathedralGalaxy_Imperium_210122.jpg