Anyway, these are my Pinterest boards so far, several of which are related to Persephone's Orchard. For example, you can see locations used in the novel (Knossos on Crete, Mary's Peak in Oregon, and more), and ideas for casting, and pretty Hades/Persephone artwork I've found online.
If you have a Pinterest account, go ahead and follow me, and I'll be happy to follow you back. Keep in mind I have little idea what I'm doing over there so far. But Pinterest is quiet and pretty! And I like that!