Create an ultra-realistic premium birthday poster featuring one single half-body / waist-up portrait of the same young man with a confident natural expression. Personal input: {Enter Name}, {Enter Birthday Date}. Dropdowns: {Select Outfit, blue blazer with white shirt, navy bomber jacket, black fashion jacket, white shirt with dark trousers}, {Select Hairstyle, voluminous quiff, modern fade, textured crop, classic side-part, messy textured hair}, {Select Theme Color, royal blue, navy blue, teal, blue and black}, {Select Expression, confident, natural, serious, smiling}. Create a stylish blue geometric background with layered panels, subtle glow, architectural shapes, soft shadows, and luxury fashion aesthetics. Add “{Enter Name}”, “HAPPY BIRTHDAY”, and “{Enter Birthday Date}” with a short elegant birthday message. Apply cinematic lighting, realistic skin and hair, detailed clothing, photorealistic 8K quality, and vertical 4:5 layout. Preserve the uploaded face exactly. One person, one half-body portrait only.