Game is a masterpiece, deserved to be a GOTY, though there is some features which will make this game, imo, even better and yes it's a Plastic Surgery like Magic Mirror from Divinity Original Sin 2
isn't there a spell called Alterself that does that already, I know that it's not permanent, however the level cap is prevent us from learning a permanent 9th level spell called True Polymorph which could do more than simple Plastic Surgery, it Permanently transforms you, if you concentrate on the spell for the full duration aka 1 hour.
I haven't tried it yet, but it's not what ppl want from what I heard and just think about it, how it will be annoying to change for ex. just hair each time spell wears off, not to mention some more complicated edits.
For example, I started as dragonborn, I selected tail, later I equiped a cloak to find out how badly tail clips through cloak, same for Tieflings, I don't know how good cloaks in this game so I decided to reroll, sadly, not a pleasant exp.for me, I hate doing same thing over again, so that's another reason to have such an option to alter appearance whenever you want, not to mention simple Barbershop.
As for cloaks...hide cloak option also should be available same way as it is for Helmets, espicially when tails clip through cloaks so badly.