The biggest, most obvious problem with your power snatch is that you are doing almost all the lifting with your arms. The acceleration is supposed to come from the extension of your legs (and hips). The only thing the arms do is guide the lift up past your hips.
More precisely, when the bar meets ~your hip crease, you want the arms to still be in full extension. You can try to think of your arms as cables / ropes. Any "pulling" movement by the arms, should only result from shrugging your shoulders at the point of "triple extension":
See how his knees, hips and ankles are all locked out ("triple extension"). His arms are fully extended, but he is shrugging his shoulders (actually a bit difficult to see in this picture, his muscles are in the way).
Compare that to some stills from your video:
This is the point where you start to bend your arms.. way, way too early!!
Here you can see what that has caused.. The bar is already past your belly button, but your knees are still bent. What this means is that you are simply pulling the weight up with your arms and doing some silly jump after that.
There is other stuff as well of course, for example your set up. But let's start here.
Next time, don't bother with the front view.