Pencil and ink, to digital fuzziness.

I started, with this simple pencil and ink sketch (eyes very Adventure time, hair very Skottie Young "Oz" beards) and went from their.

 

Started with the basic outline at 3pts. I put the sketch at 20% to work from.

Chose a nice blue.

Duplicated the shapes and masked off areas to create the shading.

Added curl hairs with special brush at 2pts to 0pts.

Added a coloured background. It took about 90 minutes in total. I think I will do it with a few more characters I have sketched to go alongside my set of robots, I'll have a set of fuzzies.