First, I gathered a bunch of photos of peaches, all from Photoxpress. Some of them had white backgrounds and I wanted black, so I used instant alpha in Keynote to get rid of the background color. That took several days. I decided to make this entire video using Keynote, something I hadn't done before. There are many more options for transitions than in iMovie. You can also add a soundtrack to an individual slide and / or to the entire show. You can't, however, add a second full-length soundtrack unless you record it there. But if you want to do that, you could just download your finished product, add it to iMovie, and then add another track.
I had to do some tweaking with timing when I wanted to convert the video to Quick Time. That should be easier and faster next time. So take a look. I hope this makes you hungry for a peach.