Photo Composite with Formal Attire

I have two high-resolution images: Photo A, which will serve as the final scene, and Photo B, containing the person who needs to appear in Photo A. I need you to extract that individual from Photo B, place him naturally into Photo A, and digitally dress him in a crisp suit and tie so he matches a formal setting. Lighting, color grading, shadows, and perspective must blend seamlessly with the existing environment—I want viewers to believe he was always in the shot. The original background of Photo A stays exactly as is; just integrate the subject and make the wardrobe change look realistic.

Deliverable: a layered PSD (or equivalent) plus a flattened high-resolution JPEG/PNG ready for print and social sharing.