Light source that’s off the canvas
If there’s a trick that helps me achieve the look I want in paintings, this is it. It’s also one of my favourite steps. I create a new Overlay layer behind my foreground elements. Using a red-orange at 50 per cent saturation and a Soft Round brush, I add a primary light source originating off-canvas. I use a layer mask to hide parts that would be blocked by leaves or branches.