The first shot is most zoomed in and makes Scooter and the lamp appear closer together. The last shot, the wide-angle shot, makes the lamp look tiny and distant. You can also see that with a shorter focal length more of the scene is captured, like the sun coming through the window, which didn't appear in the other two photos.
I hope these little tutorials are helpful. I'm making them partly as a reminder to myself of the things I'm learning and partly because I'm hoping they'll help you. If they do, leave me a little note. I am by no means an expert, just a lover of photography. I know many of you are too.
And, if I haven't said it recently, thanks for reading.