I think they should wear their original clothes. In these pictures they just look like a players toon. I like the feeling that some npcs are just stronger than us (in a 1 vs 1 situation), and i would say that thier appearance plays a role in it.
If you bring in gw2 Turai Ossa or Nika, you might as well make them look cool. (Nika: one of the most strongest assassins in gw).
Sure her armor looks similar , but just doesn’t do the trick.
Queen Jennah and “Anise” have a unique look.
What do you think?
Original:
http://www.no-cookie.com/w/images/9/91/Nika.jpg
GW2 Nika:
https://dviw3bl0enbyw.cloudfront.net/uploads/forum_attachment/file/196061/Nika.jpg
Nika in a trailer:
https://www.youtube.com/watch?v=ukqzYhvJTK8