I started by using various greens made of Antwerp blue, French ultramarine blue, raw sienna and new gamboge to paint in the background trees and bushes.

With burnt sienna I ran the barbed wire between the fence posts.
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.
Thank you for taking the time to visit my blog and enjoy the artwork. I hope you will return often.