They look good, Anna. I've taken to mounting my orchids on the inside of the cork, on purpose. Just because I like to be able to see the pretty bark texture of the cork on the other side. Don't worry, the plants will send their roots all around and through it eventually.
Your Vanda has deluxe accommodations, too. Mine are just hanging on the wire hangers with absolutely nothing around them. Roots waving in the breeze . . . seem to like it fine, though. They get hosed down regularly in warm weather.
