I just saw the vid and I have one complaint. Once he does all his screaming and actual transforming (which is perfect, except for none flashing hair) the aura goes *poof!* and he stands there just normal, like nothing happened. He just falls back into this relaxed position, and that isn't what happens the first time they transform.
They take a while to control the power, and this is shown by, the clenching of fists, bending over a bit, or breathing heavily (these don't nessecarily happen all at once, e.g. Goku only stood with clenched fists and one bad ass attitude, but all the Saiyens react differently)
Your Vegeta just returns to normal after, which isn't quite as realistic...