Start with the light and work to the dark. I picked that up along the way somewhere, so yellow it is. Portcullis en Or where Or is yellow that is not too red or orange but fits with the artists palette. My eyes were playing silly tricks after painting this - ghost yellow portcullis shapes floating in front of my vison. The anti-dispersant works extremely well. I am so glad, because that means I won't be messing about with guta; I have a congenital shake so straight lines or even straightish lines are virtually impossible.