Using burnt sienna, raw sienna, alizarin crimson and a small amount of French ultramarine blue I painted in the rocks on the far shoreline, and washed the colours over the large rock face in the foreground.

Next I darkened the greens with a little burnt sienna and painted the needles onto the foreground trees.
Using the greens and burnt sienna, I painted in the tree trunks and branches on the pine trees and the shadows on the rocks.
If you would like more information about ACEO please go to my post on 11 March 2010.
The ACEO shown here is an original watercolour painting using Artist quality Winsor & Newton paint on 140lb. Arches 100% rag, acid free watercolour paper. It is priced at $20.00 and sold unframed.