Considering that this is a mirror world, rather than "clone" or "copy", reflection might be a more apt description. Not even fake persay, but dislocated views of a single truth.
I keep meaning to make a pair of that sort of pauldrons.
They don't show up enough anymore. Petition to all fantasy and sci-fi mangas to start putting them on characters again.
That's assuming her plan didn't hinge on No6 going against orders.
She did the equivalent of putting a shiny red button in front of him and said "don't push this".
There was no universe in which he didn't, and she knows him well enough to know that.
I wonder to what degree the spirit designed it's Avatar. Did it decide "hmm, rather than hollows like unto an abyss into which the mind plumets lets try shiny eyes, that would be charming"
I really love the design of both. An attractive humanoid body sure, but a face only gesturing in a human...
Y'know if you go by the "one who is favored by the spirits" definition of hero, it completely fits. They're a bit more physical than the usual, but the elf/fairy/spirit distinction has always been hazy.
Congrats, you have freed a slave. They are now isolated with you in a vast wasteland where they are utterly dependent on you for survival. Don't examine that too closely.
Which handly deals with the usual ship of Theseus problem that kind of teleportation usually has.
My preference would to shift the order a bit, so the soul is briefly bilocated to explain how the information to build the body is at the destination, but it's serviceable.