Battle of Shipka-Sheinovo December 28, 1877 Alexey Kivshenko (1851-1895)

The picture has something of this: cavalry, group, people, mammal, seated, gun, man, weapon, soldier, cowman, transportation system, skirmish, winter, battlefield, many, herder, army, war.
Perhaps it’s a painting of a group of people on horses in a snowy field with a mountain in the background and a man on a horse in the foreground with a gun.