You can see how weak his back knee is, the way he drops/tucks it.
Haven't seen that many heelflips in a while, reminds me of me in my teens when it was the only trick I did.
Kid seems to be growing into his skating a bit more, but physically you can see the damage has already been done.
Considering he's spent a lot of time jumping off and up onto stuff and that he should be full of bounce at that age, his flatground pop is worse than mine, and I'm touching 40.