Just a few things...
Your squat is a little high, also, hard to judge by that angle, but you might be able to widen your stance a little more to get a better feel and balance and use more of a power squat type rep. Some trainees find a higher bar oly squat, limits their depth some depending on flexibility too. When you widen the stance and pretty much drop your torso between your legs, it might help with a more powerful position and thus a more stable and stronger squat after some time under the bar. You want to try to keep from folding into a z so opening the legs some to allow the torso down, helps with that. See also a goblet squat to get an idea.
Rippetoe: Some squatting...
The deads look okay, but you look to almost overarch at the start as to be real cautious and your legs straighten and hips rise a bit before the bar breaks off the floor. You might wanna try a lighter load, start with your hips in a more neutral (a little higher) and low back flat or only a slight arched position, and vid a few pulls so we can get a better idea of your form, without using too heavy of a weight.
The general rule of thumb is, that the weight moves, or is the first thing to move, when you begin the lift not other parts of the body then the bar.
If you stick or perfect a warmup form, then you keep developing strength with that form using slow increases, you get a feel for that ingrained form, doing your heaviest work.
All in all it did not look really bad per se, just less experienced and something a little time under the bar can help improve and polish.
This is not a bad set up/cue vid...