Portrait Maria Doublet van Groenstein, Lady Holderness Jean Etienne Liotard (1702-1789)

The picture has something of this: people, portrait, wear, facial expression, veil, woman, lid, man, fashion, indoors, outerwear, jewelry, girl, model, son, cap.
Perhaps it’s a close up of a painting of a woman wearing a blue dress with a white collar and a blue sash around her neck.