This is my first step. I wet the paper with a squirt bottle painted in the color really wet
and threw a little Kosher Salt into the wet paint. Click on the link to read more.
Here are a couple of detail shots to show the effect once it has dried.
This is where I am right now. I blocked in the green background
with a large flat brush and then misted the paint with my squirt bottle.
I will be working with positive and negative space as I proceed from here.
Here is another detail image.