I haven't played Drakengard, but Zero has always attracted me with her design
I again had to ask friends who are familiar with the game to learn more about the character :D
Nevertheless, I drew it with great pleasure :)
1-2 For white and black parts, glossy leatherette and biflex would be ideal (I admit, I just sooo love glossy material hehe) although the matte fabric will also be good
For belts, I would prefer leatherette.
3 For gray elements, I think leatherette (maybe even silver, hmm) or any other fabric will also work.
4 For gold elements gold glossy or matte leatherette.
5 A veil made of translucent chiffon.
In general, I don't see a lot of sequins and beads in this design, but I won't mind at all if you want to add them :)