Subway Birthday Billboard Photo

Goal: Create a realistic candid photo in a subway or underground station hallway showing a young woman posing beside a large digital birthday advertisement billboard for herself.

Canvas: Horizontal 16:9 photo, eye-level perspective, wide framing. Beige tiled station wall with grout lines and a polished gray floor. Fluorescent ceiling reflections and clean public-transit interior lighting.

Main subject: One young Korean woman stands on the left side of the frame, full body visible from head to upper thighs. She has long dark hair and wears a fitted black long-sleeve top, light blue high-waisted denim shorts with frayed hems, and a small black shoulder bag. Her face is covered by a rectangular soft blur privacy block. She smiles/poses toward the camera and points with both hands toward the billboard.

Billboard: One large horizontal digital screen mounted on the wall to the right, with a thick black frame. The billboard shows a pastel birthday fan-ad design for [character name]. The design is pink on the left blending into blue on the right, with dreamy clouds, sparkles, hearts, bubbles, and a large portrait of the same woman on the right side of the billboard. The portrait face is also covered by a large rectangular soft blur privacy block.

Text content on billboard: Include exactly 6 visible text groups: 1) small English text “HAPPY BIRTHDAY” near the upper left, 2) very large Korean name “윤슬” centered-left in pink and blue bubble lettering, 3) date “1996.02.15” below the name, 4) pink ribbon label “여신 탄신일”, 5) small handwritten Korean line near the lower left, “세상에서 가장 빛나는 순간, 언제나 윤슬과 함께할게 ♡”, 6) handwritten Korean message on the right, “윤슬아, 생일 축하해! 너의 모든 순간을 응원해. 사랑해 ♡”.

Visual style: Photorealistic smartphone travel snapshot, natural station lighting, slight wide-angle lens, realistic reflections on the billboard glass, subtle depth of field but most elements readable. The birthday billboard should look professionally designed and luminous, while the surrounding subway wall remains neutral and realistic.

Constraints: Use exactly 1 posing woman, exactly 1 wall-mounted digital billboard, exactly 2 blurred face privacy rectangles, and exactly 6 billboard text groups. Do not add extra people, extra signs, watermarks, logos, or unrelated text.