Tonight I didn't use a tutorial. I worked with the magical wand to select the unwanted background, erased it and then found a new one I liked. This is the image before the edit.
My son, the ham, awaiting an amusement park ride a few years ago.
Here is the altered background, which I will be adding to in the next few days. Tonight, I learned a lot about resizing and transforming while holding the shift button, as not to lose the aspect of the image. I'm digging it!!!