Inspired by the beach and ocean

So I saw these 2 girls walking down the beach - one with a bright pink top and black bottom the other with a black top and pink bottom. I could just hear them say - 'hey! lets swap!?" I did a sketch of them in my sketchbook that later inspired this painting.  And the larger gal on the left side - she was this gorgeous black girl with very long straight hair and no way was she getting it wet.