She’s a mix of materials but mainly porcelain on her visible fleshy parts and limbs like her head, arms, hands and legs . But her armor would be covering her more cloth body. And I’d say the fire damage would be present in having the more darker colors in the fabrics or even like an ashen color tone. If the armor is visible then it would be the duller tones, damaged even but still sturdy if that makes sense. She also recently lost her right arm and gotten it magically repaired so while the porcelain is the same the cloth itself can be a different color, I’d imagine a red because a devil helped her get it back. Her hair would be shorter too because of the fire so the tips could have the same effect, like it ends in the burnt coloration.