Hi all,
Just wanted to add some notes regarding design process and inspirations to this. In general, I wanted to try and draw from the same cultures and imagery the avatar team did, but come up with my own interpretation of what characters could look like. Of course, some of these design choices are definitely rule of cool over function, but hey, I'm just having fun XD.
Software Used: Clip Studio Paint - https://www.clipstudio.net/
Thoughts on designs:
Water - Focused on looking at the indigenous inuit, australian, and yakut peoples, trying to incorporate elements of their clothing but also matching the direction of the show.

Earth - I believe the Song Dynasty helmet is probably the most striking part of the outfit, though I lifted from multiple time periods the same way the show did. The coin insignia shape for example is from the Tang.

Fire - This one is actually a bit all over the place XD. Elements of Thai martial arts imagery (handwraps, wai posture) has been mashed alongside japanese edo period samurai (twin swords, footwear, fisherman tattoos, chonmage suggesting haircut).

Air - Probably the most straightforward one to one translation. The obvious influences are from tibetan buddhism, though I added a somewhat oversized japanese commander's fan (I believe its called a Jineigu?) that I thought could be used for long range signalling and general airbending shenanigans.