CSS For Increasing level of Zoom for Website

Hi There,

I'm currently in the process of putting a new website together for the business I work for so it's not live just yet. My boss and I were wondering if there's any way to use coding or other options to increase the level of zoom that is standard for the zoom option on the image gallery. We are photographers and need a way to display the large group photos we take and have the ability to zoom in and see the faces in each photo. Our old website is a good representation of this panfoto.com

You can use this plugin to make zoom effect: https://www.will-myers.com/products/p/image-zoom-and-follow