1. Film Burn was shitty, not a good spot, and it did not fade in what so ever.
2. You were too far from the snowboarders on a lot of shots.
3. Change up the angles, do some follow cams (I understand it may have been a bit shaky with a GoPro)
4. I'm not sure if Imovie allows for color correction, but it was needed for some scenes.
To a mind that is still, the whole universe surrenders.