Thank you! I'm glad you like it ^^
But no, sorry, I actually haven't done very much 1-bit art, I mostly stick to 4 colour Gameboy pallets. You also make me realize I haven't done nearly enough ATLA fan art. :P
I did this Esquie recently that might serve as a decent study for Aangs monk robes. You'd have to use dithering for half tones where I've used different shades, but good practice? Sorry I don't have anything closer.
https://mstdn.games/@ClumsyGolem/116705621213210365
A 1-bit avatar state Aang would go so hard though, I hope you get where you're trying to go :)