First of all I read the book. The mental pictures became clear and I went to work.
The original has since beeb removed from my hard-drive. Let's face it I don't want to keep 22 versions of anything.
The basics never changed. The woman, jumping up from the water in a way that is athletic and sexy.
The moonlight that is cascading down from above to highlight her form and the sea itself. That's where the idea started after all.
Over all twenty-two slight changes until myself and the author were satisfied with what was the first impression of his novel.
Now, the funny thing. Not even close on the most version, revisions, or straight new covers I've done.