Hello,

By default in Dashboard -> Settings -> Media, we have such settings: https://prnt.sc/fo8PruNFR1Zr

Also, some images are adjusted via Appearance -> Customize -> WooCommerce -> Product Images.

https://prnt.sc/aislfTUOm3NJ

Please read our article about Image size and content alignment:

https://xtemos.com/docs-topic/image-size-and-content-alignment-in-a-product-grid/

As for the accent point of the picture, sorry to say but right now there is no option in Theme Settings available for that. It requires Customization and this is beyond our limitations and support policy scope.

Kind Regards