For this one I used a sponge to apply the paint. First problem was the sponge being too wet. The colors kept washing out. Then when I would overlap the wet sponge took up the color underneath. So I wrapped the sponge in a paper towel to dry it off and had much better results. This technique also uses a lot of paint. The sponge soaked that stuff up like there was no tomorrow.
I used a 1/2 sheet arches cold pressed. I went big to give me some work room with the sponge. I figured it wouldn't lend itself to small areas and detail.