Steps for frame by frame animation

I was chatting with my friend where she gave me an interesting link and I though it would be useful to share as it shows very nicely the process of how to animate a walk cycle with detailed designed character.
It is doable in toonbooms animation softwares so i think its ok to post it here

Note: this work isnt mine, I just share it for educational reasons because it contains tips and tricks that I use myself aswell