before i start, this video was cool you had some great shots and did some cool stuff with your editing. here are a few things i think can help improve your vids.

-this video is 5min long and the cuts run a little to long as well. Videos that are fast and have very frequent cuts in scenes keep peoples attention and are more enjoyable to watch usually due to the fact that peoples attention span nowadays is very short. I think anything under 3 min is good for a highlight reel type video. -@ 1:17 of your video, the frame rate gets too low when you slowed down the footage. It gets that slightly choppy look. you should never resort to framerates lower than 24fps.(Ex. Slowing 60fps down more than x2) -the bumpy ride made your cam shake a lot. There isn't much you can do about that unless you want to invest in a stabilizer like this one. There are cheaper ones out there but this ones got "bang for buck" written all over it in my opinion lol. https://www.youtube.com/watch?v=qOuMNiSc8Qw - Instead of fading out the music @ 3:22 completely maybe just lower the gain of the music then raise it back up after a bit. when it faded then after a bit it came back i had to turn my speakers down cus it hit a lil too fast lol. -You're likely not going to get good 4k vids out of H4S unless you speed up video... 4K(15fps) is too choppy thats why i ditched the LCD screen and got the Black because it can run 4k(30fps).https://www.youtube.com/watch?v=qOuMNiSc8Qw - Instead of fading out the music @ 3:22 completely maybe just lower the gain of the music then raise it back up after a bit. when it faded then after a bit it came back i had to turn my speakers down cus it hit a lil too fast lol. -You're likely not going to get good 4k vids out of H4S unless you speed up video... 4K(15fps) is too choppy thats why i ditched the LCD screen and got the Black because it can run 4k(30fps)