Yes, multipe images and zoom view please

In addition to multiple images in a carousel view, a "pop out" (enlarge) view would be helpful for online shop item images - they are too small for the buyer to see.

many times if one is good two is better

Yes multiple images would make selling a lot better! Buyers want to see a 360 of item, not just one image.

Usually with auction platforms we have the possibility of adding 4 to 6 photos

ability to buy t-shirts in multiple sizes, when they buy different shirts