Optical mixing

One of my favourite techniques in art is layering one colour on top of another to create optical mixing. That's when your eye and your brain mix together the colours that are placed next to each other in the painting. A slight change can produce dramatically different effects. These two paintings both have exactly the same colours in the background but one has a detail layer of peach, cream, green, while the other is in white using a slightly thicker paintbrush. Such a different feel.