Ankles collapsing inwards, knees not pushed out enough, weight moving forward on your toes (balance point shifting forward), not hitting depth, and heels coming off the ground. The actual angle your feet are turned out is ok, it's everything else.
Work hip mobility, calf flexibility and soft tissue quality, quad soft tissue quality, T-spine mobility (it influences your balance point by allowing you to actually keep your chest up and back tighter, and it takes the load off of other things that have been compensating), glute activation and strength in a big damn way, hamstrings. The first four things are the killers to work on.
I would be looking at K Star and embracing the pain if I were you. Also note that I use different terms on purpose (mobility, flexibility, soft tissue). While interrelated, these things are distinct in many ways and you should be focusing on the mentioned qualities the most. Not sure the best way to work on the actual strength of your foot's arch.
As always, if CT says anything disagreeing with me, definitely take his word.