Rheingold First Scene Ignace-Henri-Jean-Theodore Fantin-Latour (1836-1904)

The picture has something of this: mammal, water, invertebrate, underwater, side view, people, fish, wildlife, biology, pastel, bird, wear, two, daylight.
Perhaps it’s a painting of a woman falling off of a cliff with a man standing next to her on the other side of the cliff and another woman.