Nils Forsberg jr i Paris-ateljén Nils Forsberg (1842-1934)

The picture has something of this: people, man, woman, position, wear, veil, two, indoors, sit, group, child, war, kneeling, military, reclining.
Perhaps it’s a painting of a boy sitting on a horse in front of a easel with a brush in his hand and a paintbrush in his other hand.