This is a snapshot of the work I started last week. It should give you an idea of how I plan a painting. Because yellow loses its transparency if it is painted over another color, I put all the yellow I want in a painting in the first layer. This way I keep the transparency of the yellow. Here you see the first layers of yellows plus some permanent rose and azo orange layers. On top of those two layers I have already added another layer of cobalt blue or viridian in some places. The darkest areas have the cobalt blue or the viridian green layers already on them
Where there is only one layer over white or yellow, I have used a pigment called Oxide of Chromium.
Tell me if you also paint in layers of if you prefer to do all your mixing with a brush or a palette knife.