Notes:

This is a picture I made before the new trailer for book IV came out for LOK. In the trailer Kuvira is portrayed as an antagonist.

In this picture, she is with the heroes in a posture to face the Red Lotus, and we have the representatives of Fire, Earth, Technology/ingenuity, Air, and Water all side by side.

Jinora I portray as one with her robes and hair grown out to signify a level of mastery, Kuvira using the face paint of her ancestors of the Kyoshi line with a metal fan to use as a weapon.

Asami with a customized mask and battle gear tricked out like Batman, as well as her trusty shock glove.

General Iroh in a military white coat likened to the ceremonial white jacket of the clerics of Equilibrium since white in the Fire Nation is a color of high status, wearing his grand father's old mask of the Blue Spirit, re-augmented by Asami for night vision and other tricks.

And of course, Korra, representing Water and the unification of all said groups.