Meanwhile, you could get some practice wiring and making foliage pads.
The problem I have with material like this is that thin peg coming rising up from the pot - the so-called 'trunk'. It is just boring and the hardest thing about the plant to change. It is probably too thick to bend much, so what is there to do with it? What would make it interesting or how could it be effectively hidden?
Just because it has one long branch, why does it have to be a cascade? Suppose you removed it entirely or made a short jin of it? What is left is possibly an interesting, though maybe unconventional, little tree - do you think? I'm not so sure either but it interests me more than another routine cascade.
So what I might do, were it mine, is to wire the big branch and bend/twist it up to grow more trunk over the coming years - make something that might be interesting. I would stick the wire in the pot at the base of the trunk and wrap the trunk tightly to serve as the anchor. Prospectively I will let this wire bite in to make a looping live vein. So I will need to make the loops of wire irregular so it won't be a barber pole. Okay, future direction set. Now back to that prospectively interesting little tree. Lets see what I can make with that (cover the heavy left trunk that is now doing some dance upward with something so I can see this other stuff clearly). A little wire, a little trimming to make pads and position them. Then ponder over the winter why what I tried to do didn't work or why did it come out some much more interesting that I thought it could be.
Maybe something interesting comes of this. Maybe not. The thing is that bonsai is not permanent, especially at this stage of the game. Challenge yourself to learn how to do styling and keeping it vigorously growing. If at some point you are just exhausted by it, put it on the shelf and go do something else. When you come back it will have changed. You can follow through on how the long branch wired to be trunk is coming along. Are you going to remove the wire or just let it bite in? Do you see exciting possibilities for this further into the future? Maybe it bores you and you like the little tree on the right idea. Then again, maybe some new image is coming to your mind by then. This, IMHO, is the adventure.
Enjoy.
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