I especially love when a painting is exhibited with its studies. This almost never happens.
Herbert James Draper, Ulysses and the Sirens 1909
Homer's description of the sirens was rather vague. Draper depicts them as mermaids and young women. We see a crew of virile sailors apparently terrified by three nude girls. As they boldly climb aboard the vessel, the sirens change from mermaids into women.
Herbert James Draper, The Sea Maiden 1894