Yes, I also would like an explanation. Don’t need to know the specific spell or incantation, just would honest confirmation that there is some kind of magic involved.
At first, looks like a really intense quilt. Then it becomes 3-D. It’s gotta be more than spray paint, even if we’re talking really nice paint, a really nice sprayer, and a really skilled crafts person working with a really special piece of wood picked by someone with a really good eye for the possibilities of a raw piece of wood.
Seriously, +1 Wow! Congrats to the soon-to-be new owner!