Deception - you doing that in an old peoples common room or something?!
You need a slightly straighter back (tending a little towards extension) in the set up, and a little bit more anterior pelvic tilt/stick your arse out more.
As has already been said but don't forget to take the slack out of the bar before you lift it. Looking nice though and it might just be awful memory skills, but have you lost a fair bit of weight?
80kg was a PBI did actually put another 2.5kg on but as you can see in the final vid, my form was very poor by then so I took it off for that final video.
I might be hard on myself but it really doesn't feel right :\