Did you know that Laurie R King does so called moodboards for her novels (some of them) on Pinterest? Look at this, her board for "Garment of Shadows". And this is for "Touchstone" which I haven´t yet read, but probably must, because it seems to be set in Cornwall, which I love. And then there is one for "The Bones of Paris", the follow-up to "Touchstone".
Such a great idea!