there's actually a comic that continues on in aang's time as airbender. Toff sets up a metal bending school with 3 seemingly useless pupils, zuko struggles to find out where his mother is and what happened to her, azula has a hint as to where she might be and gets zuko to release her from the insane asylum in ordr 2 find her (she just wants to kill her though) aang starts teaching his fan club to become airbenders oh and there's also a struggle over what to do with all the fire nation people who have settled in earth kingdom territories aftr zuko agrees to give the land back-- they dont want to go bla de bla so on so on.

it's actually pretty good, it explains some of the elements that come up in korra l8r (e.g the group of air benders outside of aang's kid and gkids)

U shud check it out!

Gr8 piece of art btw at 1st i thought it was 1 of those old twins who were guides to azula b4