The person appears to be a/an Middle Eastern Female, approximately 20 to 29 years old.
An elegant outfit for a Middle Eastern female attending a formal evening event could feature a beautifully tailored floor-length gown with intricate embroidery or embellishments, perhaps in rich jewel tones. Long sleeves and a modest neckline would be ideal, complemented by statement jewelry such as chandelier earrings and a matching clutch. Pairing the dress with stylish closed-toe heels and opting for a chic updo or loose waves would complete the sophisticated look.
For an East Asian female attending a formal evening event, a chic option could be a floor-length A-line gown in a rich jewel tone, featuring intricate lace details and a flattering off-the-shoulder neckline. This can be complemented with statement chandelier earrings, elegant strappy heels, and a sleek low bun hairstyle for a polished look.