Hello,
First of all thanks for choosing our Theme, we are glad to be you in the WoodMart WordPress family :).
I saw the screenshots you attached.
Basically, the product images are controlled by woocommerce and our theme doesn’t influence this. WooCommerce Allows some settings that you can find under Appearance >> Customize >> WooCommerce >> Product Images.
You can read our detailed documentation in the following link:
https://xtemos.com/docs/woodmart/faq-guides/image-size-content-alignment-product-grid/
You can try reducing the thumbnail width then clear cache and check back.
Regards.
Xtemos Studios