ビーチサイドのカジュアルなポートレート

> **CONCEPT:** A luxurious, photorealistic full-body outdoor photograph featuring the same young man with dark, styled hair and a beard from `image_47.png`. He is now standing on a sun-drenched, tranquil beach, entirely changing the context from urban overcoat to a relaxed beach casual look.
> **IDENTITY INSTRUCTIONS:** Retain the specific face, expression, and hair style of the man in `image_47.png`.
> **POSE:** He stands confidently, full body visible, looking directly towards the camera. One arm is relaxed, and in his right hand, which is held up, he is casually holding a pair of classic tortoiseshell sunglasses by the frame. His body faces slightly to the side.
> **CLOTHING (New Dress):** His overcoat is replaced. He is wearing a light, open linen button-down shirt in a sandy beige color over a simple white cotton t-shirt. He has on well-fitted, medium-wash blue denim jeans with a rolled cuff at the ankle.
> **ACCESSORIES (Retained & New):** He retains the identical delicate silver chain necklace from `image_47.png`. He is wearing casual, braided leather wrist bands and a simple silver watch.
> **ENVIRONMENT (New Background):** A scenic, wide, tropical beach. In the near background, gentle turquoise ocean waves are breaking on the shore. A few smooth, dark rocks are near the waterline. Further back, a lush green line of palm trees stretches along the beach under a clear, warm golden hour sky.
> **LIGHTING:** Natural, warm, golden hour sunlight, creating rich depth and highlighting the texture of the linen shirt and the mountain landscape. Previous cool indoor lights are gone.
> **DETAIL LEVEL:** Ultra-high resolution, 8k, with extreme precision on fabric weaves, skin texture, and background elements.
> **MOOD:** Relaxed, sophisticated, confident, and adventurous.
> **NEGATIVE PROMPT (Crucial):** photograph, different person, urban background, grey overcoat, turtleneck, cold lighting, original setting, bad anatomy.

プロンプト全体をコピーし、必要に応じて独自の参考写真を使用してください。