Clean - elbows out to sides.
You tend to shift your hips up quite purposefully with the snatch attempts. Knees out and hips down - you're losing your good set position right off.
Your backwards jump is only acceptable if you bring the bar back. The last one looked iffy - like you might have lost it out front pretty easily.
With the back jerks, it looked like your receiving stance was a little wider than your actual squat stance width.