have u filmed/edited before? if not this is a really really good start. if so then you could just work on a few basics to really get it nailed down and banger.
1. make sure your camera is not on auto exposure: you need to set it manually so that the lighting remains consistent throughout each shot.
2. there is a reason that the saying "short and sweet" exists: a shorter shot is a much less boring shot. for example: at 0:57 on the 2 out you could have cut it at least a second shorter. at the end there was an accidental bump on the camera and u finished the shot late and bumpily. basically, only use the interesting and cool parts of each clip and edit out the other stuff that isnt very appealing. this video could have been about 2:20 and really good rather than 3:18 and decent
3. stay consistent with audio: some clips didnt have audio from the skiing, some did. generally choose one or the other. one option that can get complicated is designing sound so that there is no wind and only the audio of a rail slide and/or landing.
4. editing on the key points of the song: whenever there is a big change of pace in the song, use it to ur advantage! either cut on that beat or have the skier land/takeoff on it. you were editing to the beat pretty well through the vid, but you missed out on key opportunities for sick cuts.
5. originality is never a bad thing: a new song that hasnt been used in a ski movie/edit/trailer before is always appreciated and advised.
hope that helped!