Korra firebending

Haven't uploaded in a while and since I'm not going to finish this anyway ,here's something i started a few months ago .


(Give it a minute to load if it doesn't play for you)Some if this is just a place holder/quick storyboard.

She is supposed to flick her knuckles to create a spark of fire in the beginning.
I wonder why the avatars never learn the sub elements like lightning...