Jean Baptiste Edouard Detaille – Evening of the battle of Rezonville (Gravelotte). Grenadiers of the Imperial Guard at rest, 16 August 1870 Château de Versailles

The picture has something of this: people, military, weapon, group, war, skirmish, soldier, man, group together, many, army, wear, recreation, gun, uniform, rifle, warrior, sword, veil.
Perhaps it’s a painting of a group of men standing next to each other in front.