Shifting the focus from traditional to digital art a bit, this is my second sprite animation. This one is an Agumon I made following the first sprites used in Digimon's early games, the famous Tamagoshis.

This is just a simple animation where it opens and closes the mouth that repeats for a total of 12 frames.
I made this animation on Piskel! Piskel is a free application for creating and editing pixel / sprite art that caters to both amateur and professional artists.
Direct link to Piskel app: https://www.piskelapp.com/
To Digimon fans, I hope you enjoy it.

More info about Agumon below:
"Agumon is a Reptile Digimon. It has grown up and become able to walk on two legs, and has an appearance like a tiny dinosaur. Because it is still on the way to adulthood, its power is low, but as its personality is quite ferocious, it doesn't understand fear. It has grown hard, sharp claws on both its hands and feet, and demonstrates its power in battle. It is also a being that foretells Digivolution to a great and powerful Digimon." - Source: Digimon Wiki.