Theodore Leblanc – Battle of Habrah in the Province of Oran, Algeria; Marshall Clausel and Duc d’Orléans prevailed over light infantry of Abd-el-Kader, 3 December 1835; Episode of the conquest of Algeria Château de Versailles

The picture has something of this: people, group, many, landscape, crowd, vehicle, water, man, outdoors, seashore, recreation, group together, competition, sky, daylight, beach.
Perhaps it’s a painting of a battle with a group of men in the middle of the field.