Problem with product image size.

Hello. In our project we use standard images, that kind if type:
https://megamind.im/vs/wp-content/uploads/2019/07/42748_e1b5e8ba-27f4-11e5-80cf-002590ea1e13.jpeg

But when we use it in template, we have problem with their display at the Product page and shop page. Their just too toll.
https://megamind.im/vs/product/barbebel-roze-fleri-koto-deks-an-provans/

Could you please tell us, where exactly we could change the parameters of the images in template. In which file.

Thanks.