Just watch and follow the instructions provided in the video.
I got the Flareon picture from sg.portal-pokemon.com. Everything else is me. I will make more of the eeveelutions in speed paint eventually, starting with Jolteon. So be looking for that! I am taking suggestions for some new speed paint ideas, so please tell me what you want. *Updated* I made the drawing a little better, and Jolteon is out! Check it out!