Oh my !
Now I understand your true question !
Just link the Amazon page to the release you want the cover to appear, and voilà !
When a release as some Cover Art Archive (CAA) image, it displays.
But Amazon links act as a fallback.
In this release group, VIBL-35 has a CAA but all the others show their ASIN images up.
Before linking Amazon page to a release, make sure to find the correct one.
For VIBL-35 for instance, it’s a Japanese release so I go to Japanese Amazon.
Then I search both its catalogue number and its JAN/EAN/bar code and then I take the matching ASIN for linking on MB
But it’s a good example of wrong cover, as two editions share the same catalogue number and bar code (one is 12cm jewel case and the other is a regular DVD Amaray type case).