The idea is you can see some of the colours that make up the washes at the page edges, the colour mixing takes place on the wet paper and the paint colours used were, cobalt blue, yellow ochre, rose madder, viridian, hookers green and olive green. The grey thing is ivory black.
The portrait of David Hockney comes up on page 2.
The portrait of Bill Gates also comes up on page 2.
I didn’t do so well with the Lucien Freud one, but he is a very famous portrait painter.