Love the game! I had to force myself to stop.
At the beginning the tutorial is incredibly hand holdy for such a difficult game. For the more complex tricks I can see why it's there, but I don't think text is a good way to teach the tricks. The videos in the background work well though.
Imho you should get rid of the talking and move all of the tutorial into the background, or at least make the tutorial skipable. With the current difficulty of the levels it is clear that the game does not target the casual gamer but someone who has played games before and likes a bit of a challenge. I think it's safe to assume a certain degree of competence.