Paint entire can green.
Cut out a few 'digital' stencils.
Stencil can using tan and dark green paint, cahnging direction of stencils as you move about.
Allow to dry.
Whoa, go slower, I'm trying to write this down.
Yep thats pretty much it. A little time consuming but it looks much better in person than the photo. BTW use graph paper for the stencils. Makes it easy.