Husky, still I haven't got it from you on whether the alt tag and imager name are the same on your site.My assumption was they weren't and you use some identifier to name your images, while the other site uses keyword to name them.
Every image was personally scanned by me, every image is identified with alt and title, the image is also named correctly as the product, no abbreviations, no hexadecimal, titlebar, h1 and h2 all correctly named.
My copied images on other sites are usually just the image name, nothing else.
Husky wants to be included and his concern is he is not ranking well for his images in G...
Nope, I am either #1 or not there at all, period, both my biggest sites have about 10% of their images in the index now, some of my smaller sites have as many as 90% and some have 0% whereas in the regular SERPs I am still there mostly at #1.
All this happened on the weekend of 2nd/3rd October across all sites.