Affiche de parfum art nouveau avec femme sereine et lys

An Art Nouveau poster advertising a 'Midnight Bloom' perfume. A graceful woman with flowing auburn hair, intertwined with stylized lilies and irises, gazes serenely forward. Her elegant gown features swirling patterns and delicate linework. The background is a soft, gradient of deep blues and purples, with subtle floral motifs. Style: Classic Art Nouveau poster design, inspired by the works of Alphonse Mucha and Gustav Klimt, with flowing lines and decorative elegance.