Store Images Mobile Resize

Hi there, I am a photographer who is setting up an online store to sell prints on Squarespace 7.1.

I am using a stacked design to display multiple examples of my photos. Everything looks fine when viewing on my desktop, however the images are cropped when in mobile view. There is also only one image visible (you have to toggle through e.g. 1/4).

Is there any way I can change how they are displayed on the mobile view without changing the desktop view? 

Thanks, Francesca