Lady Agnew of Lochnaw John Singer Sargent (1856-1925)

The picture has something of this: dress, woman, fashion, portrait, beautiful, girl, people, wedding, model, bride, veil, gown, lady, young, glamour, bed, sexy, wear.
Perhaps it’s a painting of a woman in a white dress sitting in a chair with a purple sash around her neck and a flowered pillow on the back of the chair.