Images are not looking high quality and is not containing

Hi i am trying to make images inside a grid be high qulity and contain ( show whole image and not just part of it). How can i fix this problem and where am i making a mistake (share some learning resources to understand better the solution if possible)?

This is my read-only link: https://preview.webflow.com/preview/floe-food-76aebe?utm_medium=preview_link&utm_source=designer&utm_content=floe-food-76aebe&preview=06548207885b883ee26d5a96c487baa9&workflow=preview