Nice job! I turned my Missouri trip last month into a tripreport but ended up scraping the project a few days after I uploaded it, wasn’t happy with the result. But I got a few pointers.
Commentary is way less time consuming than text, but if you don’t like your voice text is still an option.
Simple and repetitive transitions work. Try using dissolve on 1.5 seconds, shorter clips receive less transition time.
For music, use a type of Jazz, a good example of underused music is Autumn by rook1e, you can look it up on YouTube. If you want to use it with iMovie it and other songs in the album (Grape Soda) cost 99¢.
Lower the volume of the music when there’s important audio (takeoff, commentary, etc.)
It’s a good video though, hope to see more from you :)
If you want I could find the project in my files and send it your way!