I've commented before on the current fashion, in some circles, for having headless male torsos to illustrate book covers -- see Urban fantasy, mediocrity, and the male torso | Notes from underground, but now that I'm thinking of revising and reissuing one of my children's books with a new cover, I'm wondering about the possibilities.
This seems to be a fairly common theme for a cover nowadays...
... though one wonders what the faceless characters are like in the book.
So I'm wondering if my revised children's adventure-fantasy story should follow a similar theme, something upon these lines.How important is it that book covers should follow the latest fashions? Will it enhance sales if the book has a headless torso, and diminish sales if it lacks one? And who is attracted to books with headless torsos anyway? Does anybody know?
If I give that picture to a book-cover designer, would they be able to turn it into a suitable cover design? Does it matter that the kid in the picture is blowing bubbles? The protagonist in my story doesn't blow bubbles, but he doesn't lack a head either, in the story.
Are there any other important tropes in book covers that one needs to take into account? If so, what are they?