We got very close with the Giant Tortoise and I was able to touch one who was fast asleep basking in the sun. His skin felt so leathery and tough and his shell so hard and dusty.
Today I thought of experimenting to create him in a slightly more colourful way than in the real.
I have chosen:
Raw Sienna, Ultra Marine Violet, Perylene Violet and French Ultra Marine Blue - all Winsor and Newton Pigments.