I agree with the others - first rep needs some work, but after that the reps look good. I reckon you are not quite setting up properly. make sure to get that head and chest up, and get tight, before the first rep. Think of the lift as a pushing movement as opposed to a pull, as you push thru the heels and just stand up, leading with the head as Steve said.
It's just a matter of time and some practice buddy. I would suggest doing singles for awhile until you get it down pat and it comes naturally to you without even thinking about it.
My Favorite Part Of Lifting Is Having The Opportunity
Meet PR's: (May 2014) Raw Natural
Squat 475 lbs
Bench: 286 lbs
Deadlift: 501 lbs
Total: 1262 lbs
Squat: 495 lbs
Bench: 300 lbs
Deadlift: 520 lbs/500X5
Total: 1315 Lbs