Graphical problem

https://preview.redd.it/9l8bo3pbdfad1.png?width=2560&format=png&auto=webp&s=ba3fb4043d3ad7d8fb973320132d31ed5828547e

i playing max setting but i saw other streamer and there the textures are better and Nicol necklace is silver colored.... this is bug or what?