Welcome to the forum! Good progress so far - and luck with the program!
On your DL your back is very rounded. You are setting yourself up for back injury. Press your (nonexistent) belly against your thighs and get that spine into a neutral (not rounded) position and keep it there. A belt might help. On the way down the bar had to travel around your knees - if you stick your butt out and let the back to the work you can get a straight bar path.
Squat is hard to see behind these beams, but your back is rounding significantly at the bottom. As a result, you are doing a bit of a good morning on the way up. Same thing, try to lock that core down throughout the entire range of motion. Get a belt - good ones start at 50 bucks.
If you have the opportunity to get some coaching, now is a great time before bad habits get ingrained.