Suited Man Flash Portrait Reference

Reference image for face identity. Flawless male grooming. 
Clothing and pose: Dark blue textured wool suit, crisp white shirt. Medium shot. Standing straight, adjusting a cufflink on the sleeve. Confident look, looking straight into the lens. 
Light and background: Deep night. Lighting only from a harsh frontal flash, creating a dense black shadow on a light gray concrete wall behind. 
Technique: 85mm lens, f/1.8, RAW, 8k. Fine film grain, high detail of skin pores and fabric. Format 9:16.