Create a premium vertical product advertising poster for a fictional luxury lip balm brand "ROSE VELVET". Preserve bold modern product-poster logic: single hero tube centered, fully saturated monochrome background, oversized headline behind the tube, vertical side label, short bottom descriptor. COMPOSITION: a sleek rose-gold metallic tube slightly below center on a seamless soft rose-pink background, a creamy rose-tinted balm swatch mid-swipe across a marble surface, scattered fresh rose petals and a crisp diagonal shadow. TYPOGRAPHY: large bold white stacked headline "SOFT / BLOOM" behind the tube; slim vertical left label "ROSE + SHEA BUTTER"; bottom line "HYDRATED, LUMINOUS, TIMELESS." LIGHTING: strong clean directional light upper-left, glossy tube and balm highlights, elegant shadow. STYLE: Cannes-level luxury product advertising, ultra-real. NEGATIVE: cheap packaging, cluttered layout, plastic texture, muddy background, weak shadow, unreadable text, watermark. 8k.