This is a picture from The Lion, The Witch, and The Wardrobe. The Queen is asking Edmund (yes, he is there, hidden amongst the trees) "Are you a son of Adam?" Edmund replies "Hardly! I'm an evolutionist!"
When I started drawing the trees I discovered a way to draw the trees that shouldn't turn out to look like trees, but do. I got carried away. The next thing I knew, you could hardly see Edmund any more.