1 - Direct light source coming in from his front-right. A common photoshoot lightsource. Result: Brighter than normal lighting.
2 - Diffuse ambient light source coming in from the ceiling and walls. Chandelier-like stuff, and a bunch of normal, weaker lights around the room. Result: Not as bright but more natural lighting.
As someone who's worked on photography before:
1 - Direct light source coming in from his front-right. A common photoshoot lightsource. Result: Brighter than normal lighting.
2 - Diffuse ambient light source coming in from the ceiling and walls. Chandelier-like stuff, and a bunch of normal, weaker lights around the room. Result: Not as bright but more natural lighting.
This also applies to the color of the irises.