Well, @Hein_Thaw
This is what Google says about that: “Users who duplicate photos across locations … will be removed from the program.”. Source: Local Guides community policy - Google Maps Help
The way to improve the information about, let say, a stall in a supermarket, is to edit the stall listing, putting it “located within” the supermarket.
This will improve the information in the main place, where a directory will be created for showing all the places inside the main one, and also the information on the listing of the stall.
Time ago I wrote a detailed post to explain how this work: Local Guides Tips: How to add “Located Within” in Google Maps.
Another bad behavior is to add the same photo more times in the lame listing:
- In the review
- In the photo update
- In the “photos” section of the listing
This is against the rules too. A photo should be added only once
Hope this will help you to better understand rules and policies of Google Maps