I started by washing a in a base colour onto the trunks and main branches of each of the trees using mixtures of Antwerp Blue, French ultramarine blue and burnt sienna.

Using darker mixtures of the same colours gradually added the bark texture to the tree trunks and main branches, as well as adding smaller branches and twigs.
I will post this piece at a later date one all the branches on the trees have been completed.
Thank you for taking the time to visit my blog and look at the artwork. I hope you will return often.