Sadness (sketch) # 54 (Sadness (two in boat). sketch) Roerich N.K. (Part 5)

The picture has something of this: water, underwater, daylight, outdoors, recreation, bird, ocean, landscape, action, fish, light, watercraft, sea, vehicle, shark, water sports, winter.
Perhaps it’s a painting of two people in a boat in the middle of a body of water with mountains in the background and a full moon in the sky.