Looking good. Rear foot angle is good 110-135 degrees is what I typically shoot for, it depends on how much backswing you want to open or close up. 90 degrees IMO is way too restricted for anything other than upshots or really short drives or unless you are physically pigeon toed like KJUSA.
Try to keep the stick level, yours tends to go up or down.
Hard to tell if your rear knee is fully extended/locked out, or maintaining some flex.
It changes between the two. Should it maintain some flex? I've been trying to straighten it out a bit, because of previous observations, but could easily have over-corrected if some flex is still advantageous.
Either way, once I get the pole holding steady, I suppose the next prescription is to do this over and over again until it's muscle memory, then try to replicate with a disc?