Bathing Nymphs and Child Jean-Baptiste-Camille Corot (1796-1875)

The picture has something of this: tree, fog, nature, water, reflection, lake, landscape, mist, dawn, river, fall, wood, leaf, winter, sun, light, sky, dark.
Perhaps it’s a painting of a group of people in a river next to a wooded area with a tree in the foreground and a hill in the background.