Firstly I'll give a quick run through on how to create imagery for stencils. If you have a picture trace out the dark shapes in the image. The next step is most difficult because we need to make sure that there are no free-shapes that will not be attached when we cut out the stencil. (I took mine and blew it up for the size of the canvas.) If you do a two layer stencil like mine you want to add a layer for mid-tones in the image.
Step One! - Paint your canvas/wall/whatever you're going to paint on! ( I had a large old canvas laying around to paint so here I covered up what was previously on it.)
Step Two! - If you have a drawing ready to go that is best.
Step Three! - Paint your first layer (You have options on this one, often times people put down a base layer when doing a single color stencil, I chose to do a solid color canvas instead of doing a base color for the stencil. Because I made this decision, my first layer is actually what could be a stencil in of itself.)
Step Four! - Paint your second layer
Done! I screwed up a bit because i should have made the hair on top of the head black because now it looks like I'm bald. Also I think it could have benefitted from a base layer stencil that was the full outline of the image. Nothing's perfect and its an easy fix fortunately!