Images gone from google search.

Hi, during the last few years a google search for Reading Wagon
showed my model in Cgtrader as the third image. This was very good
publicity for both me and Cgtrader and I know that at least one of
the sales was because of it. In the last few days Cgtrader has changed the way it
links images and instead of using the image name now all the images
names are hidden from search engines and all have a generic name
created by Cgtrader. My model with the link to Cgtrader has
disapeared from google search!

Why did you do this? I seams totally counter productive.