Go to your google photo page.

Click on the photo you want to share which should bring that photo up by itself.

Right click on photo and then copy image address.

On this forum, click the image box. Then paste the image address and click the add button.

That should work.

I didn't know you had posted a picture until you mentioned it. I thought Bill had just decided to play along and post one

If you view the page source, the link you used is in there. It just can't properly display on this forum(and many other places apparently from my google searching).