User blog comment:JetGatlingGun00/Testing Your One Piece Knowledge/@comment-4493594-20120129175449/@comment-3986064-20120129175730

Luffy's sketch on fishmen

His sketch on mermaids(which turned out to be true)

His sketch of a shipwright

Robin's sketch of the Kraken

And I think she drew another sketch of something, but not sure of what