I would say that this specimen is hardening. At 4 years, I would guess that maybe she's tried to "help" it along which may have slowed the adaptation a bit but it appears fine.
I'd leave it completely alone. No pruning, let it winter under whatever leaves fall on and gather around it and just let it adapt to its location. It looks great, otherwise. A little pampered, perhaps, but healthy.
I'm not a big fan of pampering. Especially newly planted or young dudes. They're extremely busy exploring, designing their root system, meeting the neighbors and everything you try to do "for" them interrupts that development and slows down their evolution.
You don't say which direction is which but the single bloom definitely suggests that it's adapting. I'd just let it. Once it gets its sea legs, you'll be able to root some quite tough and hardy little guys from it.
