Arthur Rackham is one of my favorite children book illustrators. Dubbed the "Beloved Enchanter" he was a very successful illustrator whose gnomes, fairies and beautiful maidens brought many stories to life.
His water color paintings often in sepia tones created the right settings for mystical places. On one of my used book hunts, I came across a book in which Rackham did illustrations of a different nature, which of course I had to share.
If you are interested in the works of some of the best illustrators I can highly recommend the book "The Golden Age of Children's Book Illustration". This book introduces the works of some great talent and is covered with beautiful illustrations.