Vertical 9:16 photorealistic handheld smartphone UGC health video frame. Use the man from the reference photo: exactly the same face, short salt-and-pepper hair, well-groomed grey-and-black beard, warm brown eyes, navy henley shirt with sleeves rolled up. He stands in a cozy home library with warm wooden bookshelves full of books behind him, soft warm lamp light, a warm reassuring expression, looking directly into the camera. With one hand he holds up at chest height a thick vintage brown leather-bound hardcover book with a plain blank cover and no readable title, turned slightly toward the camera. Framing: his face in the upper third, the leather book filling the lower half of the frame. Natural skin texture, realistic hands, shallow depth of field, handheld iPhone look, vertical 9:16. No phone UI, no text, no captions, no watermark.
