A product which has {one / more than one} Alt Product ID options that define the alternate images only via the alternate products
A product which has {one / more than one} Alt Product ID options that define the alternate images via the alternate products and the product itself.
A product with no options which has more than one image defined as part of the product.
Just one product option
A product which has one or more regular options where the options define different images and those images are also part of the product. The option colours are different from the product colours.
A product which has one or more regular options where the options define different images.
No product image
Just two product radio options