Squat: Next time film from a 45 degree angle. I think your knees are going too far forward, but it's hard to tell from this angle. You are certainly rushing and not getting nearly tight enough, especially on that first rep.
Deadlifts: Film from a 45 degree angle. It looks like you're setting up with your shoulders too far behind the bar. You are certainly not tight enough. Also, what are you looking at?