little rough but not bad.
effort was shown, which is awesome. for your second one, not bad.
One part in the beginning where the words went faster than the mouth. Put your audio on stream when you're working on it, and try working on each little syllable. The more exxagerated, the better it'll be.
Also keep expression in mind when you're doing your lip sync. The entire time your dude was smiling xDD even at the end when the voice sounded like he was angry or frustrated.
Not bad though. keep practicing. This is good for a second time.