First of all you've got some good stuff happening. I disagree that the same problems exist in the DTL and your earlier FO images. In particular I like the elbow position at mid downswing better in the FO images if the difference is not due to camera angles.
My guess is that part of your problem is that in the DTL view your right arm straightens a little early. I'd prefer to see the elbow further toward impact before straightening. Sort of like the underarm motion skipping stones on water with the elbow a little closer to the body. That will make it easier to rotate your body through the ball like the ice skater keeping their arms closer when they want to spin faster.
At the same time as changing your right elbow action a little, one thing I've tried with some success is simply moving the left leg away from the target line at the start of the downswing (even the left knee for starters). In my case I thought I was doing everything I could to rotate my hips open but it turned out that I hadn't tried the obvious step of simply moving the knee and the left hip where I wanted them.
With so much good stuff happening in your swing though I'd try the elbow action first to see whether your natural athletic ability kicks in to move your hips.
As a side note Malaska advises that his move does not involve uncocking the wrists (no ulnar deviation in techo terms) until the club is stood up.
Thanks for the mental punch in the arm for confidence. To be honest, in the last 2 weeks with 2 lessons I've been getting worse and worse. Not altogether surprising. But to make changes sometimes we have to suffer. Having said that, it was really windy in Sydney this arvo and there's nothing like a wind to bring out faults. The biggest problem I have is starting the backswing by a pushing of the right leg laterally. I can often even feel myself sliding laterally before completing the backswing. I think that's a little bit of tension in the brain that does that. One of the reasons why I don't drink coffee (which I really enjoy) before a round of golf.
So my current project from the lesson is to get back and down a little in posture to counteract the standing up part of my natural backswing. That's the first part. He then had me try and produce the 'swoosh' at the bottom of the arc to put it simply. This was the practice swing at the top of this thread. The 1st lesson he was trying to get me to think of dropping my left knee down, out, up and around kinda-sorta. Which is more or less what you're saying. The thing is that this right leg is so dominant that while I'm thinking of turning back and 'screwing down' with right leg, trying to keep arms closer to my body as I tended to have too much separation, tinker between going back bowed or cupped, drop the arms down at beginning of swing, keep the right elbow, wrist bent and try to push down/out with a bowed left wrist...all while trying to keep head back while almost viciously rotating hips and staying in shape like Tommy Fleetwood from behind. Not a lot to ask....So clearly I'm a mess and think I probably need to take a break from the game for a few weeks. I pretty much feel like I can't even hit the ball at the moment. It's a headfcuk!
Have a read of Kelvin's article on Micro Moves of the Correct Backswing. I can't copy it on the rubbish tablet I'm using. From what I see all your issues originate in the backswing and maybe a weak left hand grip.
Didn't think my grip was weak. If anything it sometimes can get a bit strong. Although as you say the left is more weak than the right. I'd say on average the left thumb is at 1 o'clock. Right hand is stronger. I can go stronger with left. Actually tried that a little today. Felt like DJ. Went back with what felt like super shut clubface. Too hard to tell by then though as my brain was fried between 35kmh winds and growing inward confidence spiral.