Here are some more pictures of the orchid in the Port Jackson Fig, taken today. For more about the Bridal Veil Orchid see below. These pictures start with the tree, moving in towards the orchid plant and then its flowers.
I've also added at the end a picture of the climbing cactus, Queen of the Night (Hylocereus triangularis), identified by Simon Goodwin in the comment after my previous posting. As I noted there, and as befitting its common name, this is a plant you are unlikely to see in flower in the Royal Botanic Gardens - its flowers open at night and close by morning. Perhaps we need special summer viewing of this one, after hours.
And this is the cactus!