Alphonse Mucha Amethyst print. Alphonse Mucha is one of the most famous and celebrated artists of the Art Nouveau period. His gorgeous vintage advertisements and elegant posters continue to enthrall modern audiences. Amethyst is a fine example of Mucha’s sense of color and ornamentation. A beautiful blue-eyed girl sits above purple irises wearing a dark purple dress running her hands through her brown hair. A great gift for fans of Alphonse Mucha, art nouveau, vintage posters, and retro prints.