From Wikimedia.
Maria Amalia seems to keep up with the fashion as the Napoléonic era wraps up and the Victorian era takes over with a straight, possibly side curl coiffure under a tight-fitting bonnet. If she wears side curls, than the date of this print may be off or she was somewhat out of fashion.
Keywords: Maria Amalia of Saxony (1794-1870), Wettin family, Princess, straight coiffure, feathered bonnet, liner, ruffles, strap, bows, high neckline, collar, cape, necklace