A quick tip today. Look at this portrait of a personal trainer which I helped a student take earlier today:
Standard key light (a small strobe), fill light (in an umbrella) against a white background. But instead of onto the head, which is already separated from the background by its colour, I turned the hairlight onto the background.
And because it has a snoot on it (a Honl Photo snoot, attached to a speed strap), I get this nice parabola-shaped beam of light behind the subject’s head. A technique worth using occasionally. Avoid getting stuck in the “same old light” category!
(The parabola reminds me of a satellite, somehow. Probaby because have an engineering degree?)