I think this is deceivingly "almost there", but that would make for just an ok tree.
It has a lot of potential for a longer term project which could make a much better tree IMO.
The interest of movement beyond the first branch kinda dies with the lack of taper. If you wish to keep it, I would grow the first branch heavy as a sacrifice to thicken the base, while keeping the "Apex" barely alive.
Seems you can cut a lot of mass from that apical section anyway, relying on whatever is on it's first piece of green to regrow things from, perhaps lower down too if it sprouts.
But then I wonder if it shouldn't have a branch grafted to that first curve, and the whole top chopped off, in favor of that first branch as a new apical section, since it is headed in the right direction anyhow.
I think you should start starting this thing, rather than try to start finishing it.
The base deserves it.
Sorce