OutFlanked

It's easy to find numbers for transgender-identifying percentage of total population, but I'd like to know about relative frequency of trans men vs trans women and haven't been able to find any statistics.

In general, trans women seem more common in the media than trans men, although that's just personal observation.

If there is a notable difference in frequency of trans men vs trans women, are there physiological or sociological theories as to why?

I'd like to have crests for the five city-states that make up the main focus of my upcoming Pathfinder campaign. Unfortunately my art skills are nonexistent so I wouldn't be able to create anything of a quality that I'd be willing to use. Is there anywhere I could find resources that would be useful to this end?

I can post the document that I've got the world building basics in if anyone's interested, I'll just have to edit it a bit to preserve privacy because it's got chatlogs with my players in it.