Why are my Images Shifted on Products? - They appear too small on preview, but ok on page?

[mcmxmas]

Hi - Please see the attached images. Why are my Images Shifted on Products? - They appear too small on preview, but ok on product page? I checked to be sure that I filled the product to the bleed on the back end, all is good. Can anyone tell me what's going on here? Thanks in advance! 

https://www.zazzle.com/aluminum_tree_christmas_party_invitations-256099703758398803

https://www.zazzle.com/festive_flamingo_christmas_party_invitations-256400667370543718

Appearance On the category pageOn the product pageOn the product page

[mcmxmas]

another example. Please someone respond. I need to know how to resolve this. 

[Sandra-]

@mcmxmas there’s another post re this issue here https://community.zazzle.com/t5/technical-issues/sizes/m-p/174052 with a reply from Zazzle.