Annette Comtesse de Vergennes, in Oriental Costume.
Antoine de Favray, 18th century
Wikipedia recomends this lovely portrait of a French ambassador's wife, again in Oriental costume. The first thing that catches my attention is her creamy skin and pearl jewelry, but I soon notice the round waist... and then the foreshortened leg and slipper peeking from under her dress! An ambiguous portrait and the composure implies disarray, but beautiful nonetheless.