Not bad. Here is what I see:
Your set-up is good, hinge position looks correct, but before you lift you should get your lats tighter and lean back until your shoulders are over the bar, then lift. Currently you are lifting with your shoulders a bit forward of the bar, so that is not the best wedge (leverage).
As you start to lift, your lower back changes shape (rounds) a bit. There should be no change. Get tighter in the abs, glutes, and lats, and lift less weight if you have to in order to keep your back as it is at the start.
On all but the first lift, you seem to lean back a bit at the top. Just stand up straight.
I don't have a lot of experience in critiquing deadlifts so certainly welcome any other inputs.