The person appears to be a/an East Asian Female, approximately 30 to 39 years old.
An appropriate formal evening outfit for an East Asian female could include a beautifully tailored qipao or a floor-length gown with elegant details, such as lace or silk fabric. Accessories like pearl earrings, a clutch bag, and classic pumps would complement the look, along with a chic hairstyle that enhances the overall elegance.
An elegant outfit for a Middle Eastern female attending a formal evening event could feature a beautifully tailored floor-length gown with long sleeves, perhaps in rich jewel tones or soft pastels. The dress could have intricate embroidery or embellishments that reflect cultural aesthetics, complemented by statement teardrop earrings, stylish closed-toe heels, and a chic updo hairstyle that enhances the overall look.