Regarding to this character's clothing design: it seems that different doujin artists have different views on at least two of the components:

1. The dark colored clothing -
a. is a one-piece bodysuit; or
b. is a two-piece set of leotard+pantyhose.

2. The golden colored rings around her upper legs -
a. are just patterns on the bodysuit/pantyhose; or
b. are actually metallic garters wrapped around her upper legs.

Which of the above is the official design of the game studio?

Genshin Impact Wiki said:
Around her neck, there is a golden bell. She wears a black body-suit with gold accents underneath a purple and white bodice with long ends similar to a tailcoat, with a separated pair of sleeves to match. The bodysuit meets at the back of her neck to make a bow. She has white heels with gold accents and gray bottoms, with red knots around her ankles. Her Cryo Vision rests on her left hip with a red cloverleaf knot.

It's stated to be a bodysuit, but wiki is iffy.

Mr_GT said:

Is there a source for this piece? If it's from some random fan wiki page, then I'm not sure if it's OK to believe it (not to mention there is no mentioning of the golden rings).

Just hope there's something like original character design sketches (from a visual fanbook, for example) for reference :/

After taking a closer look at her official art (post #729139), the top does seem like it's made with different material then the bottom.

Mr_GT said:
After taking a closer look at her official art (post #729139), the top does seem like it's made with different material then the bottom.

Yes, but with very slight differences in terms of colors - and this ambiguity is the beginning of those different interpretations.

https://poly.google.com/view/3rteHKZDc1R

Radioactive said:
https://poly.google.com/view/3rteHKZDc1R

Thanks! So it is really a two-piece set then (and the golden rings aren't garters).

P.S. Glad that I can view that model before that Poly service stops.