What anyone could tell you even without looking at this is that a trailer cannot be 14 minutes long. Over 2 minutes passed before I could even see a deck of cards, you're repeating some of the stuff and you have 5 minutes of credits (credits would normally go on the end of a DVD, not a trailer). I can see that you invested a lot of time and effort into this, but you have to learn to filter your content.
Also, although the flourishes look good and some of them are even very impressive, keep in mind that it's kind of hard to see a lot of them because of the out-of-focus camera, bad lighting and your hands that go out of the frame a lot of times.
You are obviously very skillful and I wish you luck on your project, but I believe these are some valid points to think about.
Cheers!