Better job of setting your back, but when you went to pull you lost it because of a few reasons.
Focus on pulling slack out of the bar rather than jerking it off the ground
(Explained why here: Stop Jerking the Deadlift Off the Ground with Victoria Diaz - YouTube
-Also focus on not letting the bar after you get it set up over your midfoot in the beginning, there is a lot of movement of the bar throughout your reps.
-rock back a bit off of your toes and back onto your midfoot, but that doesn't mean drop the hips.
-Take less time between reps as it is exhausting to be in that position for a long time
-Keep hands on the bar (basically did a double and a triple there)
These habits mainly come from practicing them in the warm up and then executing during the work sets, so work to add them to your warm ups and record your warm ups (for personal use not to submit here) to see where parts are breaking down to then fix them.