Ok I have been trying to figure out how to design my own pattern for chapels I have been finding. Then I remembered this site at Marth Stewart (ugh).com and the conversion software that is there.
http://www.marthastewart.com/glitter-painting
I want to show you what happens to a picture before and after and suddenly the design logistics are not nearly as overwhelming. I will post my pieces when I finish them. What it does is blurr out the details and leave the fine lines. Try it with a picture and see how much easier it is. I use this for watercolor painting which tends (at least for me) to be less fine detail and more color placement.