I took the basis of the design from my old 2019 art.
The designs for Artoria and Nerona are paired, so some elements are similar.
1. For blue fabric, I like "royal" expensive materials - velvet (perhaps even with sequins), dense satin, jacquard (with a suitable fine pattern)
2. For white elements - biflex (for comfort), satin, jacquard (if the blue fabric is smooth without a pattern, then you can take a white fabric with a pattern), white leatherette.
Lace can be used for stockings, veils and trimmings.
The pattern on the sleeves is complicated, I tried to depict it so that it was clear.
Please tell me if any details need to be depicted in more detail.
You can download HD in the attachment