I am by no means the world's foremost authority on deadlifts, so take this with a grain of salt.
It looks like your shins might be coming forward a bit at the bottom... hard to tell, but just judging by knees. You want to try to maintain a 90 degree shin angle to the floor. The big way you'll be able to tell is where you feel the weight in your feet when you start the pull. If you're feeling it forward of your mid foot, shin angle is likely out of whack. Also looks like you might be able to start your hip drive a bit earlier. Maybe. Im no expert and that's just based on what I've read and how I try to cue my lift which needs a good bit of improvement. Just thought I'd share a bit.
I think it's Dave Tate who says to think about pulling the weight back instead of just up if that helps.