By the time you write the last page you have done half the book. The other half tends to get done in about five weeks; I do several drafts, very, very furiously rewriting. I literally do more or less nothing else and I stick with it and go through it and I begin to hate it.
Nature, never, never let's you down, it's not a cliché, nature isn't a cliché, pictures might be, but you can get tired of pictures.