For fashion items such as dresses, T-shirts, pants, shoes, and jewelry, two things are important.
First, you need to show what an item looks like when it’s worn. If you can afford it, use several models with different skin tones, sizes, and sex to showcase your products. The better the customer feels represented by the model, the higher the chance the item will fit and suit the customer.
Add photographs that show details such as fabric.
Second, you need to focus on details. If you sell a T-shirt, you can use product photography in which the whole shirt is shown, but you should also add some images where you focus on details such as fabric and print.