Hey Alex,
That’s great to hear you made the switch and found it helpful straight away, very pleased to hear that!
As you said the footwork as you mentioned of course is a vital area and it will improve with focus on this area of course.from the videos it looke like you’re hitting the ball well and I can see a big improvement from videos you’ve sent in the past in terms of technique. You look a lot more relaxed in the arm and body which will help you generate more spin and give you control too.
The legs and body especially on the backhand side is very good, I would say just make sure the wrist is released forwards and in front, but otherwise looking good.
On the forehand, much more relaxed arm too which is great, your body rotation is very good just be sure you are staying low at the end of the shot and keeping your weight forward. Keep up the great work though!