I've been creating the nation maps from the gazetteer (GAZ) series of BECMI modules in the world of Mystara for my 5E campaign in that setting, and want to share my work with everyone. I'll reply with a separate post for each map.
Each map is using an 8-mile per hex scale, created in Campaign Cartographer 3+, using the Mike Schley style set. I don't have an artistic bone in my body, so without the work of Thorfinn's hex maps I wouldn't have known how to start. I like the Schley style a lot so I've been sticking with it. I export the maps at 72 pixels per hex for use in a VTT (Fantasy Grounds) and using a 60% JPG quality to keep the file size down without sacrificing much resolution. Some of the maps are really big though and have gotten dropped down to a 30% JPG quality, but I'll always post the 60% here.
I'm also going to include a link to my Mystara Gazetteers Album in this top post. Enjoy!