Ivory Bloom Luxury Fashion Poster

Create a Cannes-level luxury fashion advertising poster for an original couture house named "{argument name="brand name" default="IVORY BLOOM"}". Use 100% live-action ultra-realistic editorial photography. Preserve the exact structural logic of the composition: a tall vertical poster, one adult female model in a soft close-up portrait placed centrally, her head slightly tilted and turned with a calm distant editorial expression, wearing a {argument name="outfit" default="high-neck ivory dress"}, and a {argument name="floral element" default="single oversized white peony"} blooming beside one side of her head as the key visual counterbalance. Set the entire image against a clean warm butter-cream background with no environmental clutter. The final image must feel like a collectible high-fashion magazine cover: poetic, aristocratic, soft, cinematic, and unforgettable. Style lock: ultra-real luxury fashion portrait photography, soft vintage editorial realism, prestige couture beauty campaign, clean studio-art background, no illustration, no CGI look, no plastic skin, no over-retouched beauty-filter effect.