here are some of the things i see, and i'll be more critical so you have a few more things to work on:
intro was too long/needs something more to it, maybe some motion to the shot or multiple shots like suggested.
a lot of the shots are a bit shakey, use a tripod or if your looking to keep it more affordable a monopod will help and works well if you're not using a whole lot of zoom and stick more stationary angles. also a few of the shots were too close up, so the subject was overtaking the frame.
for my taste it was a little long without much variety, so i would cut out some repeated tricks and straight slides, and maybe just get a little more selective.
try to tie in some more transitions with the editing, like someone said before, the cloud shot was a little random, and the cat shot while cool, didn't have any context (might have been better used as a transition from intro to skiing). while it would be nice to have a few lines of rails in there, that's not completely necessary and sometimes not possible when filming multiple people, but it did tend to get a choppy shot shot shot feel, maybe play with a few things going from one shot to the next with both editing and how you shoot it.
