I Need harsh criticism of my math tutorials

[DoTheMath]

Hello, I recorded 4 videos of Precalculus for youtube.
I wanted to get your impression of them to see if they are good or bad and see what I can do to improve them.

Thank you so much.

channel link: https://www.youtube.com/channel/UCST4iENQSpk4OLYcscA1X0A