Worked it out? No, its not my weird gamma settings on my scanner which make the underater people look like they've been sunbathing in Chernobyl. Here's a hint:
An accident with a photoshop filter, or yet more evidence that society is intolerant of Fish-People and their perfectly natural, if not beautiful, foot claws? YOU decide!
EDIT: To clarify: The "Toes are Icky" version can be found on the publisher's website; the uncensored version is the cover to the printed book.
