Squats: You are going way too deep; cut it off just below parallel and rebound back up with your hips. Tuck your chin and stare at a spot on the floor 3-5 feet in front of you. Slow down the descent to a point where you are under control. Your low back is going into flexion at the bottom; this is likely a result of the depth, but it may also be due to you getting loose because you are dive bombing the descent. Post a new video from a 45 degree rear angle.
Press: Don't punch your head so far forward at the end of each rep (at the top), just return it to its natural position. Finish with the bar directly over your shoulders at the top, you are pushing it back behind you a bit too much. Overall not bad though.
DL: Pretty solid. I think you are dropping your hips just a tad when you tighten your back. And I don't think you are squeezing your chest up as hard and tight as you could. But this weight looks so light that we wouldn't see much form break down in those areas. Lets see what happens when you start adding some weight (as part of an intelligent progression; i am not suggesting huge jumps in weights).