Marie Antoinette's

François Dumont, Portrait of the Queen Marie Antoinette with her children. Late 18th century, paint on ivory. Musée du Louvre

I love all the details of this painting, down to Marie Antoinette's blue silky shoes and hat. But what is really interesting (and I do not think you would know by looking at the image...) this portrait is only about 8x5 inches big!

François Dumont, Marguérite Gérard. 1793 Miniature Painted on ivory. The Wallace Collection.