Lighting diagram for a portrait

A grey muslin, a big octa, and restraint. The octa stands camera-left at head height and a touch above, close enough that the light wraps; a panel camera-right returns a third of it so the shadow side keeps detail. Two tubes behind the talent, one each side, draw the edges that lift her off the cloth, and a low practical throws a soft grade up the muslin so the background reads as depth rather than as a wall. Everything is aimed at one face: if a source cannot say what it does for the face, it goes back on the truck.