Form check

[meloncap78]

Form police chime in

[Maverick2015]

Others might be better to answer, but the one thing that stands out to me is when you set up and take the bar off the rack. You are pressing the bar out of the rack instead of pulling it. So you lose tension. This is further illustrated by the little hand shift you did at the beginning tossing the bar in the air. Try putting the bar a little higher if you can. Take the time to get some tension (you are not doing this either) and pull it off the bar. To get tension one trick is to try and pull the bar apart once you grip it.

I can't really tell where your elbows are too well with the angle for some reason. Maybe others will chime in on this.