Create a premium, ultra-realistic vertical birthday poster featuring one single half-body / waist-up portrait of the same young man, showing his face, shoulders, chest, and upper waist. Personal input: {Enter Name}, {Enter Birthday Date}. Dropdowns: {Select Outfit, black velvet blazer with black shirt, black bomber jacket with white T-shirt, luxury black suit, black leather jacket with dark shirt}, {Select Hairstyle, modern quiff, textured hairstyle, slick-back, side-swept, messy textured hair}, {Select Theme Color, black and gold, navy and gold, charcoal and gold}, {Select Expression, confident, natural, serious, slight smile}. Create an elegant luxury background with metallic accents, geometric shapes, soft gradients, cinematic shadows, and premium editorial styling. Add “{Enter Name}”, “HAPPY BIRTHDAY”, and “{Enter Birthday Date}” with a short elegant birthday message. Use cinematic studio lighting, realistic skin texture, detailed hair, natural facial proportions, photorealistic 8K quality, and vertical 4:5 composition. If a photo is uploaded, preserve the face 100% exactly as provided. Only one person and one half-body portrait, no full body, no duplicate subject.