First thing I did was mix a pale green and put in the distant background trees and I also added some of this colour into the middle ground pine trees.
With a dark of French ultramarine blue, burnt sienna and alizarin crimson I continued to add more tree trunks to match the shadows on the snow as well as completing the smaller trees in the distance against the pines.
Next I added some autumn coloured leaves onto the maple tree branches as well as adding a few leaves onto the ground at the base of the foreground trees.

Using a soft blue grey I added more shadows into the snow throughout the painting.
The grasses and growies were painted in using mixes of cadmium yellow, raw sienna and burnt sienna.
If you would like more information about OSWOA please go to my post on 12 March 2010.
The OSWOA 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 $40.00 each and sold unframed.