Blue hydrangea

Native exact 3:2 composition, final asset 7680x5120 pixels, 8K ultra high definition realistic professional studio flower photography. Subject: Blue hydrangea; single fresh stem, slightly asymmetrical. Core artistic theme: gallery. Background: a cool blue matte background with subtle tonal gradient; pure color or only a very subtle gradient, no clutter. Light and shadow: soft diffused studio light; one precise rectangular geometric shadow crossing the lower third; 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.