Jean-Etienne Liotard, Portrait of Laura Tarsi, late Watercolour and bodycolour on ivory. Is it possible that Liotard had several sets of Costumes that he dressed his sitters in? It seems the exact costumes are used on several different women.
'French lady in Constantionople', ca. Painting by Jean-Étienne Liotard who lived in Istanbul in He continued to wear Turkish dress for much of the time when back in Europe, and was called 'le peintre Turc' (the Turkish painter).