Cheers for the positive feedback everyone.
@Matthew - on hot summers in Melbourne. Currently I have an ideal setting for my Japanese maple forests .. under the dappled light of a Chinese elm in my courtyard. They are protected from direct sun and hot wind. They seem to like this environment and I think this little 'pyg' would flourish in that environment too but... the tree is coming down this winter

- council permit pending. Yep, for a range of reasons the big Elm needs to go. It's a great shame... none the least for the bonsai in my courtyard!!
Still - time for a shade house and an upgrade in how I care for my bonsai. Hopefully, I will build a fit for purpose shade-house to protect my trees. If money or time doesn't allow it this year ... a few of my trees may holiday at step-dad's where the daily care is unparalleled. He is retired and loves bonsai too.
@SquatJar - yes they are hard to come by. I don't think there are many around and I am certainly grateful for the opportunity to purchase it; very fortunate indeed.This tree is around 20 years old, I believe.
Tending bonsai teaches me patience.