Hi and welcome!
You're doing very well. Some basic suggestions from a first glance:
1) It appears your arms are locked at full extension. You don't want to go all the way out like that. Everybody's body structure is different, but actually locking your elbows will take away some of your control and recoil recovery.
The best way to establish your hold on the gun and present it to the target is like this:
a) Get your firing grip with your right hand, nice and high.
b) Bring your hands together in front of your chest and wrap your support hand around (NOT BELOW) the fingers of your shooting hand so that your thumbs lie together, pointing toward the target along the left side of the slide, high up about where the slide and frame meet.
c) Get the gun up into your line of sight, between your eyes and the target and THEN push the gun out toward the target.
d) The front sight should be appearing in your vision as you're pressing outward and then (ideally) you press the trigger just as the gun is reaching a neutral extended position, maybe about 90% of the way toward full arms-locked extension.
In other words, your elbows should still be bent a little.
2) Stance: I know the first scene was your first time and you probably know better already, but you don't need to stand with your feet so far out like that. A good pistol shooting position simply has you face the target squarely, with your feet about shoulder width apart (no farther) and maybe your left foot just a couple of inches in front of the other. You don't need to kick one foot way forward or pull the other back. The gun isn't going to push you around very much. Then as you bring the gun up and press it out to the target, lean just a little bit forward at the waist and roll your shoulders up (we call it "getting BIG on the gun" or "driving" the gun) and that will put you completely in control of your balance and recoil recovery.
3) Grip it HIGH. Pistols work best when you get your firing hand grip as high as possible, and then wrap your support hand around the strong hand as high as possible. Think of trying to get the barrel of the gun squeezed as low down into your grip as you can.
4) While you do need to get the gun up into your "workspace" and vision for reloads, be aware of your muzzle direction while you do so. There's a balance to this, but you don't need to point the gun right at the ceiling to do a reload. Try rolling the gun a bit to the right (as you raise it) instead of picking it straight up into the air. You really just want to point the open magazine well at your support hand coming in from the left with the magazine, so you can easily insert the magazine. Too much lifting of the gun and muzzle not only can be a safety problem but wastes a little time and motion slowing down your reload.
5) You do not need to get into the habit of whacking your magazine base multiple times to get it to seat.
There's a smooth firm motion you should develop that gets the top of the mag into the grip, then drives it home in one smooth, hard stroke. That's more secure, and a lot faster, than getting it sortof in there and then hammering on it three times.
Great job so far and good luck developing your handgunning skills!
For a quick lesson from a champion, watch this:
