After posting it, I had a little problem. There was a message indicating the picture could not be uploaded. I had forgotten that the free Blogger does not host any images 🙁 …you must bring them from elsewhere through a link or else subscribe to a PRO version.
I clicked then on Blog + View Blog Page and the published page appeared right in front of me immediately.
I will now go back to the previous post and link the image. This can be done by clicking on Blog + View History. You are told to wait and then you get a window where you can edit what you have done.