Mask, middle layer

Here's the second layer in progress: first, the outline incorporating all the colours of the rainbow (7 - you know how attached I am to the number 7); second, the outline filled in with 3-4 layers of paint to produce a dark base (so many layers because most of the colours I employ are translucent); third, the veins of the leaves are painted in and then layers of gradually lightened colours are applied to give a 3-d look to the leaves; fourth, a detail of the gradual lightening, the red and green leaves are nearly finished while the orange and yellow leaves are not.