Apparently so! Or, at least, a very beautiful woman who Celebrimbor has never seen before is in the main hall, standing and examining the murals. She's tall and willowy, with a rich auburn hair that falls in tight waves unusual for elves. She has none of the inner light that suffuses the Eldar - certainly none of the bright spark in her eyes of those who once lived in the light of the Two Trees. Her ethnicity is very hard to place - the Avari are a strange and diverse tangle of elven tribes in the eyes of the Noldor, so that probably isn't a bad guess by sheer process of elimination.
Her clothes are indeed very strange - they're probably silk, glossy and fine, in an amount that would be a king's ransom this far west. Her voluminous outer robe is a deep purple embroidered in silver with mountains and rivers and odd peaked houses and scenes of people talking or playing instruments or fighting, over a heavy white dress embroidered with pale green lilies and tiny gems, a thick green sash at her waist. She wears silver earrings and bracelets, and finely wrong silver chains weave through her hair. Celebrimbor doesn't recognize the style, though there's echoes of motifs in some of the fashions worn by dwarven travelers from the far east.
She doesn't turn to face Celebrimbor immediately, though, continuing to look at the art.