I don't have reliable information about a specific artwork titled "Mirror of the Goddess" by Ernest Haskell in my training data. While Ernest Haskell was a notable American printmaker known for his etchings and engravings in the early 20th century, I cannot provide accurate details about this particular work without risking inaccuracy. I would recommend consulting museum collections, printmaking references, or the Smithsonian American Art Museum database for factual information about this piece.