Help with different sized images and positioning

Hi Guys, May be a super simple task but I’m having a lot of trouble figuring out a problem and no matter what I do I’m not able to solve it.

I have changed pictures on a free template I’m using “Pompeo” and because the images are different sizes etc its now changed the layout and positioning. some are bigger, some are smaller and the layout is completely out fo line.

I had a similar problem a couple months back which I resolved but im not able to figure this one out. its within the shop page which is also linked to the home screen.

Here is my link - https://preview.webflow.com/preview/blooms-of-barnes?utm_medium=preview_link&utm_source=designer&utm_content=blooms-of-barnes&preview=084e88200c6057eb05e86dcc1b8631f8&pageId=5e8cbfd5ac0d682d2676b531&mode=preview

please could some one be kind enough to show me what im doing wrong as I have a feeling this could happen again.

Thank you in advance,

Best,
Billy


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Is any one able to help with this please? I would really appreciate it as I’m really stuck.

Thanks so much