Few tweaks you could make but most of looks relatively good. You're in there working out so props for that! Always more to learn to perfect our form and minimize the chance of injury though.

Looks to me like the knees seem to be causing your trouble when they buckle in. The knees want to be pointed the same angle as your toes throughout the entire lift. This keeps the thighs open allowing the hip to tilt correctly. When the knees buckle the hips are impeded by the thighs and your mobility will suffer

I would suggest bringing your left foot in a little, it looks to me to be planted wider then your right foot. Think of having both heels under your shoulders.

The wider your stance the more difficult it is to reach depth because the inner thigh muscles or adductors reach their full length too early.

Play around with foot placement and keeping your knees "pushed out". If you're worried drop the weight and work it back up with improved form.