Product Image Design 4: Providing at scale images
Target's feaure images incorporate a model to allow visitors to see how the dress fits. Things like how tight it is, how short the dress is in length and sleeve, and neckline are all difficult to describe in words.
Product Image Design 5: Making additional images in image gallery obvious
Target doesn't overload the image carousel. Instead, they make it obvious that more images are present by placing a dark overlay and messaging letting site visitors know how many images are available.
This is the only dark overlay on the entire product page.
Product Page Best Practices Buy Area: How to handle multiple customer groups the right way
The "buy area" describes the widgets where customers can actually purchase the item.
Traditionally, on desktops this is above the fold on the right hand side. Best practices for product page buy areas include