For the final round of user testing I have added a few things to the visual design and tightened up my mockups. I need to work on getting the prototype up to speed but I want to do that after I have my user testing completed.

Product Cards now are full width of the screen, allowing more room for product information and larger images.

Product Detail Pages are full width as well and now includes if the item is in-stock or not. Still debating if this should be included on the product cards as well.