Chocolate cosmos

Native exact 3:2 composition, final asset 7680x5120 pixels, 8K ultra high definition realistic professional studio flower photography. Subject: Chocolate cosmos; single diagonal flower, velvety petals as the hero. Core artistic theme: engrave. Background: a warm umber seamless background with slight amber depth; pure color or only a very subtle gradient, no clutter. Light and shadow: soft amber side light; a minimal triangular shadow behind the stem; harmonious light and shadow. Premium magazine cover and luxury advertising quality, highly realistic botanical anatomy, crisp visible petal texture, believable stem structure, refined color science, clean negative space, elegant composition, no AI look. No text, no watermark, no decorative background objects.