Evening Star, private collection Wilhelm Kotarbiński (1849-1922)

The picture has something of this: water, river, outdoors, landscape, daylight, flower, scenic, reflection, lake, seashore, rock, nature, bird, environment, evening, light, recreation.
Perhaps it’s a painting of water lilies in a pond at night with a full moon in the sky over the water and a few ducks swimming in the water.