How to draw and paint KNUCKLES in a painting (using acrylics)

I show you a way to draw and paint a picture of Knuckles The Echidna in an easy way so that you can do it yourself and thus you can decorate your room with the characters of the Sonic The Hedgehog series.
For this painting I used a 20×30 cm canvas and acrylics, while for the outline I used a fine tip marker and permanent ink.