Katana Leigh sez, "I want to provide memorable ways to learn to draw that are interesting and visually entertaining. The proportions of a red spotted button mushroom are the same as a skull and these LSD colors provide maximum contrast so you can see the process and hopefully copy it. Not your boring art lessons but a new way to think about seeing."
How To Draw A Skull 2: when a mushroom is like a face
(Thanks, Katana!)