Based on what you've already got, I see some interesting ideas. My advice would be to take what you've got, divide it into categories, and expand on each one as much as you can. Geography and general history would be a good place to start for a top-down overview. Then, you could get into each race's specific history, culture, biology and relations with one another to flesh things out a bit more. I'm particularly curious about just what the Ucaronia are, and what's the deal with the various landmasses / nations.

Thanks, the Ucaronia is actually a fantasy version of the sci-fi version of that race. Yeah, I know bad idea to use the same idea in different settings, but multiverse is my answer to that. And I do have some ideas of the mythos, and other things.

Thanks for the feedback as well :)