As
@leatherback mentioned, the recurring shape in different trees is boring... and doesn't seem natural.
Like you, I am also a beginner, started last year during the summer. I watched a lot of videos, bought books, managed to attend one workshop this year already.
But I learn the most by practicing. In the videos it all seems so easy... indeed, wiring is not that difficult... but doing it the right way, and repeating it, is not obvious.
The best way is to practice on cheap nursery trees, or, as I did, on some branches I trimmed from my thuya hedge. And yes... practice the "S" shape until you can do it well. See below my first wiring of this simple "S" shape. Do this, and you'll notice the mistakes... foliage suddenly hanging upside down, branches tearing, crossed wiring, wire too thick or too thin, wire loosing when bending the "S"-shape....
Watch the videos again... practice again.
Do this on different types of branches...conifers, deciduous trees....
This is my first wiring on a thuya branch
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Trying the "S"-shape and wiring the primary branches
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Afterwards, spin the wire off and rub it along a round bar or brush handle. Then you can reuse the aluminum wire..
View attachment 392697View attachment 392698
Do a few branches every week.... and after e few weeks, try other shapes
...Not to mention the hardest part... the shaping. But just practice learning to wire first. the more you do it, the less mistakes you will make.
While you practice, you can already buy cheap nursery trees to practice, and keep them alive after your manipulation.
You can even plant one in a grow bed for later. It's not a sprint... but a never-ending marathon.
Good starting videos:
BSOP Bonsai beginner series:
Structurel Wiring: => part of the BSOP series
Detail wiring: