Hey squizzy,
Just read this thread for the first time and you're tree is coming along nicely.
You said you'd love people's thoughts so I hope you don't mind, but I did a little virt of what I would do as I find it easier to see it.
In it I removed the bottom rear branch, shortened the bottom left branch and rotated it to the right a few degrees - would maybe even go a couple more. I think leaving the bottom branch goes toward telling why the tree is leaning over from the weight of it. And the removal of the rear branch shows off the taper in the trunk better.
I wasn't able to do it on my phone but I would also compress the top to reduce the space a little, also angling down the branches on the left but not so much the bottom left branch. In saying that I would leave the negative space between the new bottom right branch and the trunk line to show the trunks movement clearly.
Good luck mate and again I hope you don't mind. Also great sketching skills!
Cheers,
Pearcy.
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