This was the poster that made Alphonse Mucha's career, as well as a lovely example of Art Nouveau. However, I must point out a downside: This is the reprint from Les Maîtres d'Affiche, a roughly contemporaneous reprint, but a reprint nonetheless.
Support – taking an exception to horizontal pixel count, it's historic and detailed enough. Bammesk (talk) 04:09, 15 July 2020 (UTC)[reply]
Support (t · c) buidhe 04:18, 15 July 2020 (UTC)[reply]
Oppose Ah! I've just asked a question at Commons that you've answered here. The source image is poor quality compared to the original and should not be the one we feature. Charlesjsharp (talk) 10:36, 15 July 2020 (UTC)[reply]