Painting - Lighthouse and Skyscape

Just started a  landscape including a lighthouse (oils, canvas wrapped edges, 24" x 18")

Here is the original print from which I am painting:

(picture was taken in 2009 while visiting New Zealand and Australia)

This is one of the books I am referencing for painting clouds above the lighthouse:

(by Willilam F. Powell, 1998, ISBN 0-929261-48-8)