For the black hair girl there is 3 names for her. N2, Terminal and Red Girl. So im going to tag it as N2. No yorha in it because its a program from the machines not the humans. If i remember correctly.
Update: Seems like Terminal and N2 are the main names so if any one decides to add terminal as her name thats fine

According to his tweet :

https://twitter.com/gamerag94/status/964397715504312320

It's guests illustration to his friend's book :

https://twitter.com/AoinHatsu/status/956082583418257408

@sonic201
Since N2 was already being used for an artist, I've created a new character tag.

Kikimaru said:
Since N2 was already being used for an artist, I've created a new character tag.

n2_(nier_automata) would probably be a better tag than the codename part that never was a part of its name.