Set up looks pretty good, maybe take a look at weight distribution, looks like knees are a bit to far out towards toes, try getting your knees directly over the balls of your feet which will bump your ass out a little past your heels.

Backswing looks better. The club is on plane much farther going back. BUT you seem to be raising your arms up a little at the very start of the backswing and at the same time lean forward towards the ball. Need to stay level throughout the swing.

Start of the downswing is close, a little off plane but not much, even though you are a little above the plane. Looks good until hands/arms are about waist high, then you start moving up and backing away from the ball a little which leads to your arms starting to moving out away from your body and to the right.

Look at these two pictures of impact. Golfer A,  club shaft is almost back to same position and on a very similar plane, arms a little tighter to body you can see both butt checks,and he has remained level.

Golfer R, club shaft is well above where it started and slightly different plane, arms working away from body, knee going out towards the ball, not as much hip turn and body moving up a little.

In the next image, golfer A’s club is still on plane, look at how the shaft, his right arm, even his shoulders are very close to the same plane the club started on.

Golfer R at this point of the swing, because arms where moving away to the right, the shaft is off plane, arms and hands more in front of middle of chest and moving UP as opposed to around and on plane.

So we need to keep working on reducing the amount of arm swing away and to the right, keeping the club/shaft on plane better on the follow-through. As well as staying level throughout the swing by reducing leg/foot movement and forward lean during take-away.

Hopefully we can get together at look at your videos so all this makes more sense.