Tim – We are definitely getting closer to cracking this.
As I think you are copying the link of a photo in album view, rather than the individual photo.
I started with this link.
https://photos.app.goo.gl/TjqVmRFSeN2pXQ4D8
Which looked like this on my screen, after I cropped it to highlight the initial code.
I then used ‘Open image in new tab’, rather than use the ‘Copy link’ option in that menu.
In the new tab that opened, I then used the ‘Copy Image Link’ to get the code for the IMG tags.
Which gives me this.
It seems the code needs to start with ‘lh3 .google user content . com’ (with no spaces).
Rather than ‘photos . google . com’.
Following the same process, I also got these.
I think the sequence should be:
Select the photo album first
Select the photo in that album next
Then right click the photo for the ‘Copy Image Link’ code
Good luck, Paul.
PS
Nice work on the light plinths.