Not the art department — Patrick used two theatrical focusable zoom spotlights (probably the 1000w variety) with included metal sliders to make the rectangular shapes. Both lights slightly left of camera and a foot higher than models on weighted C-stands. My guess is one light had a color gel the same color as background. A point source light (such as the sun) will yield a sharp shadow, and saturated colors — and a focusable light with a halogen bulb is about as point source as you can get. 100 ISO f/16. Color temp is probably 3,200K. What is degree’s K? — the color of the light when a cavity in a piece of platinum is heated to a specific temperature — the higher the temperature the bluer the light — just like a flame. Why I remember this stuff, I have no idea… when almost everything else I fail to retain.