Oh, how I wish Ivan Bilibin had illustrated that most wonderful of books, The Hobbit! Add a grey robe and peaked hat to the figure above, and we see a wizard riding to the rescue of his friends (captured by trolls, no doubt). Or change that horse into a snarling warg, and we can imagine a wicked goblin warrior off to battle!
Ivan Bilibin was a Russian illustrator during the early 20th century, and his work is a wonderful example of Art Nouveau style.
What would The Hobbit have looked like if illustrated by Bilibin? Let's take a peek at Chapter IX, "Barrels Out of Bond" - the Bilibin version...
Nova Akropola has a very nice gallery of Bilibin's work. (Note: the site is in Russian.)