It’s getting better.
2 things:
1. When you unrack you can see that you are arched. Try to lock the brace in before you unrack.
2. On the 2nd video, watch your heels.
They come up at the end.
Focus on the TRIPOD root to prevent this.
Big toe, pinky toe and heel all smashed into the ground.
Keep at it. you are showing improvement quickly.