1st video: Clean is fast under = good, you let the bar drift and you jump forwards to receive it = no no. Keep the bar in tight after your 2nd pull. A lifter should never jump forwards from where they start. They should be either on the same spot or behind a tad.
Jerk = you lean forwards slightly on the drive phase, stay on your heels more, this will be more apprent when your lifting a bit heavier as youw on't be able to hold the weight, it'll lock to arms length then crash down.
2nd video: first 155 looks verys sharp, line is better, you don't jump forwads, jerk is better as you stay on your heels longer.
2nd lift in the 2nd video looks good as well.