Music: HNNNNNNNNNNNNNNNNNNNNG
Speed: HNNNNNNNNNNNNNNNNNNNNNNNG
Shape: Difficult to tell, as it's not in side profile... Let's see...
With me L337 video capture skills, this
should have you in full hip extension with heels planted, looking as though you're standing straight up and leaning ever so slightly back. As we've got heels off the ground without a bit of hip flexion and heels off, it would indicate you're not getting as much oomph out the lift as possible.
You also rocked back onto your heels with the first catch, suggesting (to me, an amateur) that you took the weight onto your back and didn't get under the bar enough: bring yout hips through more and (never thought I'd get to ask you this...) get your knees wider apart.
Second catch is (obviously) more stable, but it looks like you caught it on your back (hips weren't through at the bottom enough).
None of the above will cause you problems with 40kg, and looking at your low bar back squat, probably even up to 80kg. However, getting under the bar and keeping it overhead without compromising the catch, your shoulders or back will require more vertical torso, methinks.
Either way, you are VERY fast under the bar!
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