The only difference between those two URL's is in the file name and the redundant version number you can trim.
prince_among_thieves_vinyl_store_2200x.jpg
continuum_vinyl_store_2_800x.jpg
Before that for each we have:
cdn.shopify.com/s/files/1/0069/3465/9162/products/
To find the larger size trim the version number (or make one up, it doesn't matter), replace the album name and make sure to add the "_2" we noticed earlier.
There's your larger version. Often various sizes of the same image are uploaded to websites to serve at different resolutions or devices to save unnecessary bandwidth loading a 1.5MB image for something 200px wide. When I was checking I was doing it on my iPad where it's harder to grab the main image URL so instead chose one on a release page itself to grab it.
As I noted before,
Bella Donna was the first time I spotted the quirk:
products/bella_donna_vinyl_store
_2_800x.jpg
It's not something consistent with Essentials releases though..
products/the_stooges_vinyl_store_800x.jpg
..and I'm sure there are other naming convention quirks they might have if you scour the links to the old releases to check.