I used a thin cadmium red toned background (too light). Over the last month I've been reducing my palette. Currently it consists of yellow-pale, cadmium yellow-deep, orange and red, permanent green light, cerulean blue, dioxane purple and of course titanium soft white. I use a wide range of cadmium's, because it's easier. The only color I would add back is French Ultramarine. I also use a toned disposable palette by Stephen Quiller. My brush work is deliberately more impasto and towards palette knife. While these might be sell-able, my only objective , is to study colour relationships to each other and light.