Not bad, but one thing...
Do you really know how to ski ? 'cauz
1- Position of the skier : In the middle of the skis !
2- Position of the skier2 : DON'T put your body back (Like sitting)
3- Skis - A normal ski is flexible....
4- Skis2- A ski from TODAY don't have a spike-head.
BUT , your movie is really funny, good work in overall.