The 'Clero' is a fantastic species for bonsai in this part of the world. It's a native of Reunion in the Indian Ocean and it came to tropical coastal Queensland in colonial days as a hedging plant for gardens. Since then it escaped the confines of gardens and is somewhat feral in a number of locations. But its still a great species for bonsai, robust, shoots back, small leaves and great fibrous bark.
The first three pictures are of the trunk of the tree from a number of different directions.
The final picture shows the tree returned to the poly box to grow on and stabilize. The branch structure was trimmed back to reduce any wind load and also to reduce any dehydration pressure from the much reduced root mass. At this point the tree is just experiencing what any other tree would during a spring root prune and will no doubt respond in the same way, with abundant growth. After a month or so for new roots to grow and stabilize the tree, the next stage in the rejuvenation can start - building a new branch structure - one that reflects the broadleaf character of the species and will leave the future bonsai looking like a tree!