Another classic text that I have come close to illustrating on a number of occasions is Peter Pan, by JM Barrie.
Here are a couple of character studies I did in 1995 when a new illustrated version was being discussed.
I think my Peter is a bit lame, but I am really pleased with Captain Hook.
Arthur Rackham got some terrific imagery out of Barrie's Peter Pan in Kensington Gardens, but I suspect I would have found it all a wee bit soppy for my liking.