So, the photos, as promised. I have found close to nothing online for Duranta as bonsai, but the little I did find was quite promising.
https://ricardopaiva.wordpress.com/meus-bonsai-2/duranta-giangante/
The page is in Portuguese but the translate feature works quite well. The leaves of duranta are naturally small, and I have seen some leaf reduction on a few smaller stumps I collected. As I said before I was very rough with this tree and it stood up to the treatment well, with a more practised hand, as you'll see in the link, its decent as a species, for bonsai. That said, I'm hoping the rest of these photos will get a final answer on the viability of this particular tree as bonsai.
Attached some more links with duranta as bonsai
thanks, for taking the time.