[@angelofoctober] Well our story begins in the Si-Wong desert and the plot is very travel based, but I imagine the world looking more like a modern world, since the technology we're using is a cleaner version of what they had in the 70s-80s, though it might be underdeveloped in some areas, such as the desert and the Southern and Northern water tribe (and the swamp lands). As far as fashion, I've been working on some concepts, but basically I've been trying to do what Korra does as far as giving an Avatar twist to the fashion they had in that era. I only have a female water tribe example as of right now but I'll try to create at least examples for all the nations. 

[hider=This is what I had in mind][img]https://i.imgur.com/S8dWE7t.jpg[/img]
Again, this is just a concept I was playing with. Don't feel restricted by it or anything. In fact, if you can come up with something better, let me know.[/hider]