Based on the portrait photo I upload, generate a formal business profile headshot poster. Preserve the subject's real identity features, facial proportions, face shape, and overall aura. Do not alter the subject's identity.

You may moderately refine the facial contour so that the lines look cleaner, more natural, and more photogenic. Smooth the skin texture, reduce blemishes, dullness, and uneven tone, but do not over-retouch. Keep authentic skin detail and natural lighting.

Design a business hairstyle that matches the subject's face shape. The hairstyle should be clean, mature, professional, suitable for formal occasions, with natural strands and layering, not exaggerated. Style the subject in formal business attire, for example a dark suit jacket with a white or light-colored shirt, optionally with a tie. The overall look should feel premium, minimal, professional, and trustworthy.

The shot is a frontal half-body portrait, subject centered, facing the camera, with a natural confident expression. The background is a plain solid white, lit softly and evenly, like a professional ID photo, corporate headshot, or university faculty profile portrait. Overall style: clean, formal, business, high-resolution realistic photography, square 1:1 ratio.

Reserve a clean information bar at the bottom of the image with modern minimal typography:
Name: [Yuna Koizumi]
Title: [Senior Graphic Designer]
Department / Institution: [International Design Institute]

Important text rule:
If the user's input for name, title, position, department, institution, or any other text that needs to appear on the image is in Chinese or another language, first translate it into natural, accurate, formal English, then place it on the image. Unless the user explicitly asks to keep Chinese, do not display Chinese text in the image.

Typography requirements:
The first line (name) uses dark navy bold large English text. The second and third lines use black regular-weight English text. Overall layout should reference university faculty profile pages, academic conference speaker cards, or professional business headshot posters.