A number of characters have names that are artistic references. "Roscuro" refers to the "Chiaroscuro Movement", Botticelli is a reference to the artist Sandro Botticelli, painter of "The Birth of Venus", and Boldo is named after Giuseppe Arcimboldo, a famous surrealistic painter who composed faces and figures out of various objects in the way that Boldo himself is made out of fruit, vegetables and kitchen utensils.
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