Cinematic black-and-white low-key portrait (film noir), 4:5 vertical, medium close-up, centered. Head down, looking at hands adjusting cufflink (hands visible, natural tension). Single overhead light → deep shadows, eyes partially hidden, highlights on collar/knuckles/glasses, subtle rim light. Dark suit, white shirt, dark tie, minimal accessories. Pure black background. 85mm, f/2.8–5.6, ultra-sharp, high-detail, no smoothing. Moody, serious, luxury editorial tone.