What To Wear In Passport Photo

I’m in need of some advice on what to wear for my passport photo. I’m looking for something that will look professional and presentable, but I’m also conscious of the fact that I don’t want to look too overdressed. I’m a woman in my late twenties, and I’m looking for something that will be appropriate for my age. I’m thinking of wearing a plain white collared shirt with a black blazer, but I’m not sure if this is the right look. I’m also considering wearing a dark-colored dress or skirt with a plain white blouse. I’d love to hear what other people think I should wear for my passport photo.