The person appears to be a/an Middle Eastern Female, approximately 30 to 39 years old.
An appropriate formal evening outfit for a Middle Eastern woman could include a beautifully tailored floor-length gown with long sleeves, featuring intricate embroidery or embellishments that reflect cultural aesthetics. Pair it with elegant teardrop earrings, closed-toe heels, and consider a sophisticated updo hairstyle to complete the look.
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.