It all comes from your setup. The biggest issue with the deadlift is setup. It's a much more technical movement than people realize, one or two inches out from your optimum position can totally mess up the movement. One main positive is your lockout seemed solid. No hyper-extension and your glutes seemed to really fire at the end.
Now I'm assuming you don't have any flexibility issues with getting into a good deadlift position? If so, as Reed said drop your hips lower. Not as low as people often think, you still want your hips to be a good way higher than your knees, its a deadlift not a squat remember!
Also, try and sit back onto your heels a little more, a good remedy for this is to lose the shoes. Definitely not the right shoes for deadlifting. You need a flat, hard sole that's as thin as possible. I deadlift with just socks on, but I understand why some people don't want to do that. The softer the sole, the more force it absorbs when you drive off the floor.
A great video to watch that helped me with my setup is a video by EliteFTS:
Hope it all goes well. Keep lifting.