Both.
New artsy background invoking the cliffs of Monterey (like Big Sur's default), and then 4 that are like paintings of photos from Monterey ("The Cliffs", "The Lake", "The Desert", "The Beach"). All dynamic. Will post pics when they are downloaded. Yes, they are not installed by default, you have to download them from System Preferences.
EDIT: Big dumb, those are from BS not Mont.