Question: who are the water nymph?
Answer: A Naiad by John William Waterhouse, 1893; a water nymph approaches the sleeping Hylas. In Greek mythology, the Naiads (/ˈnaɪædz, -ədz/; Greek: Ναϊάδες) are a type of female spirit, or nymph, presiding over fountains, wells, springs, streams, brooks and other bodies of fresh water.