They were both pretty short but that wasn't a big issue. The first one had a few too many crashes. The second one was a lot better and had several sick shots. As mentioned above, I didn't really like what you did with the last shot. I didn't think it was the sickest shot so I don't know why you put so much focus on it. I would have been fine with the same idea (music cutting out and stuff) if it was with one of your other shots.
Overall, I thought they were both really good. Maybe you could combine the footage to make a slightly longer edit and cut out a few of the crashes.