I'd say a fourth category, but most closely resembling Generic Fantasy Elves. They're about five feet tall, tend to have cinnamon or darker skin, purple, indigo, green or brown hair, and live in fiercely territorial tribes. They're only hostile to other elves, though, and if you can earn their trust...
I don't really think there's anything else too extraordinary, save some indigenous types of flora and fauna, but there's a whole creation myth that I've had a lot of fun with, as well as a whole thing about the everli (the elements, of which there are five: fire, earth, water, air, and time) and the avlari (what I call, for lack of a better word, the counter-elements, and of which there are also five: light, darkness, life, death, and shadow), which together make Inershal (the Balance). There are also a bunch of minor deities and spirits and things that no one really likes to think about. And magic, of course. Magic that has hopefully original origins. Also, Rhel was created by accident. Yup, you heard me right!