Madame A. Aughié, Friend of Queen Marie Antoinette, as a Dairymaid in the Royal Dairy at Trianon Adolf Ulrik Wertmüller (1751-1811)

The picture has something of this: people, woman, wear, portrait, costume, opera, dress, dancing, retro, knife, girl, two, model, man, sword, dancer.
Perhaps it’s a painting of a woman sitting at a table with a cup in her hand and a teapot in her other hand.