Cerberus is a three headed dog in Greek Mythology. It's the guardian of the Hell Gate of Hades'es. In the Divine Comedy, ( an ancient poem by Dante Alighieri) it is said that Cerberus is on the third floor on Hell... then who guards on the first floor??? Well, that's a mystery.. (Maybe because it has three heads!) Ok, let's leave that nonsense behind and get to the art!
Step 1: : Materials
The only thing you need is a sheet of paper! No need glue or scissor! Use brown colored papers, light brown or dark is fine. You can try black colors (But I rarely see a black cerberus).