Rain Clouds - A Work in Progress

This is my third monochromatic painting (see Mountains and Waves on my postings of 22-23 January 11 respectively) using only French ultramarine blue and burnt sienna.

I think I will add some dark coloured deciduous tree trunks in front of the clouds. The lace patterns the branches make should be a pleasant contrast.

I will post this painting later once I have it finished.