Yes Morris, that is me on the right. The little fellow on my shoulder is an infant Common Brush-tail possum. see this link for more information
Brush-tailed Possum
I care for orphan native animals and prepare them for release.
Blossom (the little fellow on my shoulder ) was released early last year. I had him from the time he required 3 hour feeds. They bond to their carers quickly and are completely reliant on their mothers. They ride on their mothers back and when taken into care they will ride on their carers shoulder (or even head -which is not to be encouraged)
I have heaps more photos of him if any one wants to see them.