Can I have a separate eBay image to those on our website?

Image Management

Magento 1.x

Add an image to the product and set the Label field to gallery. If you don't want to show it on the website then set it to 'Exclude'.

Magento 2.x

Add an image to the product and set the Alt Text field to gallery. If you don't want the image to appear on your site, tick the Hide from Product Page checkbox.

WooCommerce

It is not currently possible to add an eBay specific image in WooCommerce (WooCommerce limitation).

Shopify

It is not currently possible to add an eBay specific image in Shopify (Shopify limitation).