I'm leaving the big guy under the Beautyberry. The Beautyberry has iridescent purple berries in autumn. I think he'd be too cute looking a bit like an iridescent black dragon with purple highlights under that shrub. But I certainly do like the look of the green wash on the link you provided.It would give them a somewhat mystical touch.
https://external-content.duckduckgo.com/iu/?u=https://i.pinimg.com/originals/4a/8f/25/4a8f253c01127a104c9a2cc63e1b5675.jpg&f=1&nofb=1