The images are background images. Give each MS Radio Image it's own combo class so your images don't override each other.
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Each of these radio groups has some Custom CSS. You only need one per page, but I included one in each to make it easy for you copy and paste.

And each group of radio buttons has a unique name. The value is what gets saved/submitted.

If you're using Memberstack, each radio input has a data-ms-member attribute. You'll need one custom field per radio group.