Fabulous collection. Some of them I have never seen, most of the Australian natives, and some are familiar here. The Bauhinia monandra and Bauhinia variegata have naturalized here and are often seen in people's gardens as well as growing wild out in the countryside.
The scent of Michelia alba is one of my favorites. I've been looking for one here that I can grow in a large pot on my bedroom terrace. I need to get back on that search. It's a heavenly smell and they seem to bloom most of the year.
The walking palm is really interesting. Plants are so amazing in their adaptations, I've never seen that one.
Plants grow rapidly in the tropics, it will be fun to watch these develop.