My dad calls this configuration of fingers The Evil Eye. He’s Sicilian. I don’t know what he’d think of a green hand Evil Eye graffitied on a wall. 
He’d probably accuse me of creating it.
“Did you do that!?”
“Oh no I just took the photo of it.” I’d say truthfully
“Yeah..I know you. Haha. Don’t do those things!” he might add proudly
It would be funny -we’d bond-over that green hand and its Evil Eye.
/
Van