It looks hopeful,
@Victorim. Good enough to play with for a while longer before maybe resorting to rolling the dice.
I think you can bend it a lot more when and if you want to try. I would put another wrap of wire on those lanky stems you've got - place it midway between the wraps that are there now. You may break one of these in the process, but in my experience it is no big deal if the broken area is promptly wrapped with polyethylene (HDPE) tape or parafilm or self-amalgamating silicone tape (sold in auto parts stores for radiator hose repair) or even saran in a pinch. It probably doesn't matter exactly what it is as long as it functions as a moisture barrier. I favor using stuff that transmits oxygen so I may leave it in place long term, allowing the damage to 'heal in situ'. Of course, this can only work if the break leaves at least a thread of cambium intact and it is stable/supported - this is the point of the extra wire. You can wire a couple pieces of rebar to affect a branch bender (give you more leverage).
Of course there is also cutting a groove (and filling it with wire) to make stiff branches bendable. But you'd need take the wire off, figure out where to cut the grove so it won't be visible in the final tree, and probably wrap with raffia and/or a ton of zip ties and wire. Personally, I don't seriously entertain this yet, because of the uncertainty about just where this is going. But it is another 'something to consider' so as to get your money's worth (so to speak) out of it.
Anyway, you can roll the dice anytime you want. Meanwhile, continue having so fun with it. Back budding will or will not happen just the same.
Have you thought about grafting? ... just kidding
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