Nice video. If I may...to form good habits and muscle memory, work on executing your mag change, no matter the situation, in your 'work space'. That is in front of your face. Bring your new mag up to your gun. Not your face and gun down to your mag.
Those gloves look kind of clunky. Why ya wearing them?
Looks like a too big piece of thumb glove cloth gave you an issue with whatever safety release on the holster for your draw.
I consider myself a fairly new shooter(about 2 years). Still trying to learn as much as I can. Wish I could take a class but all I do is work which is why I have the gloves on. outside of my full-time job I literally cut grass seven days a week except when it rains of course. The only training I get is from watching Lucas@trex arms.