They are not a closed species, they are from an Era before Artrpgs, so you can just make one and draw them if you like.
General rule is to keep in mind the lore about them and their world.
Im continuously working on this realm, though i'm slow due to disabilities.
You are most welcome. I started these in Art school way back in year 2003, so the Realm has been around for two decades I decided to put all my info expanded onto a website last year, just in case DA went down or I lost copies of what i'd written. Since then I've written more about the world, and continue to do so.
I still need to update about the Fables, and Illustrate Specific ceremonies, as well as re-describe all the Deities.
A labor of love haha
Feel free to read more on the Website: https://fourrealms.weebly.com/