I made a gif of endlesss scrolling. I do a lot of scrolling when I'm bored, so here's a gif. It was difficult to make the scrolling loop perfectly.
I made a cinemagraph of my artistic thought process. I spend a lot of time thinking where to start when I draw. It was difficult to size the gif so it could be uploaded.
The hardest rule was solid drawing because it was more about drawing technique than actual animation. The easiest was arcs because swordfights are fun to animate and arcs made it look cooler. Stop motion is a great medium and although I'm not that great at it, it's still fun to attempt and watch other people's creations.