The issue of the Nightborne is, their faces do not match those NPCs we have seen before, females, yes, they do kind of look like NPCs, however for the playable Nightborne males, to me, it looks like they have used the original concept of the Nightborne, rather than adding the existing Nightborne male face.
concept art:
https://imgur.com/a/OYDGQqZ
In-game NPC male face:
https://imgur.com/a/AmHQdhQ
As you may see, the nose shape is different on the concept art, than on the NPC face, the same applies to the ears and etc.
And yes Blizzard, I still have not forgiven you for not giving the most iconic hairstyle of the Nightborne male.
When the customizations were announced, I hoped it will be added back, even drew my OC with it.
https://imgur.com/a/iIWLFuh
But no, my astromancer stayed in her female form.