Two things I noticed:
1.) He is contesting a shooters line of sight, not the trajectory of the shot. Is this deliberate? More often than not, it looks like he could block the shot directly instead of just blocking the view of the shooter.
2.) Maybe more a thing for the off season I think. I think he needs a back to the basket game a la Dirk. Especially in the last two games vs Lakers and Suns, they were switching everything in pick and rolls. After the switch, KP gets the guard on his back and often gets the ball in good high post position.
After receiving the ball, he is always trying to face the guard up, instead of backing him down. He is able to hit a shot with a small right under him, but I would think, a back down with a fade away would be more effective and force a double team all the time.
3.) Get better with passing out of the double team. He is already not bad with that, but especially when he is on, like vs the Suns, he is still trying to do to much and loses the ball in the process.
All that said, he is way ahead of anything we could have ever hoped for him. And he is progressing on the run in a way I have rarely seen by any player in any sports. There was no real hole he was in this first 1 1/4 of his NBA career. Whenever it looked like he hit a wall, he quickly adjusted. Good things will come for the Knicks!