A really great tutorial. I added just a bit of follow-through at the very last facial stance using an expression I learned in a previous video. I also wanted to add something a little extra and added some shadows using a grainy texture.
I found the rig to be a bit restricting but it is a very useful tool for quick and simple character animations. The convert vortex tool also gave me some trouble, I just couldn't get it to work properly. The tool kept making both lines curve or not making them curve at all; not sure if a specific keyboard character needs to be held in while dragging the points. But nevertheless, I had fun learning something new.