Ночь на Ивана Купалу Холст масло Ivan Sokolov (1823-1918)

The picture has something of this: group, people, many, woman, flame, man, smoke, crowd, tree, silhouette, light, wear, landscape, cavalry.
Perhaps it’s a painting of a man standing in front of a campfire with a lot of people around him and a fire in the middle of the night.