Msg#: 4634966 posted 2:24 am on Jan 4, 2014 (gmt 0)
whatson - That's a good approach. Custom Search routinely shows many more photos than regular search. In the searches I just ran on a Custom Search engine I use for testing, they certainly did. Additionally, the site:domain searches that I ran for several image conscious ecommerce domains displayed product thumbnails on every listing. I think you'd be happy with the results.
We've had a several threads here about setting up sites to get Google to display thumbnails in their regular serps, and I'm sure that similar considerations would apply to getting best thumbnails for your ecommerce internal site: searches.
The images need to be properly marked up... and, I've observed, Google likes images that are graphic and tightly composed. More details and some additional references in this thread...