Form critique

[Garethq1]

Hi guys,

Other than the footwear... which I'll be changing asap - whats wrong with my squat?
My knees feel weird
My butt 'winks' at the bottom - don't know how to fix that?
After various other critiques I've tried to stay more in the hips and recently my hip flexors have started feeling different - I don't know if they are sore or if they hurt... I don't know whether this is because I have only just started squatting properly "in my hips" or if its because my form sucks and I'm just injuring myself?

any help or advice would be appreciated.

Squatx5 - Streamable

Thankyou

[Mark Rippetoe]

You haven't compared this video to any of the videos we have done on the squat. That's what's wrong.

[Fulcrum]

The weight is way too light and that is allowing you to go way too fast.