I have my copy mounted on board. I wanted to see my color idea before I dove in to paint. The first idea is very straightforward white sunlight and blue skies with shadows falling into grey-purples. The atmospheric perspective will just be a fade into pale blue. Pinks on the girl and gold-yellow on the horn and hair will bring attention there. Right now the sea needs a little more brightness and glitter. Maybe too tame? Try storm filled sky or deep golden light?
P.S. I'm on the header! Thanks, header maker person.