The young beauty Nikolai Petrovich Bogdanov-Belsky (1868-1945)

The picture has something of this: people, girl, woman, portrait, family, house, room, brunette, happiness, beautiful, indoors, child, bed, wear, furniture, lifestyle, dress, smile.
Perhaps it’s a painting of a woman in a white dress sitting on a window sill with her hand on the window sill and a man in the background.