This photo shows the result of mixing the yellow and blue, how the different proportions of yellow to blue produce different greens. All I've done here is to start with my brush on the yellow paint I squeezed from the tube and paint back and forth, moving to the left all the time, gradually having less and less yellow on the brush.
I'll then repeat the process, mixing in the yellow into the blue more and more, adding more yellow as I need it, until I've got all the green I wanted.


