HE just learned??? Wow. HIs knees are gorgeous!! And his head is nice and down. One question though. If he just learned, why is he doing a verticalof this height. He should probobly be doing crossrails and very small verticals for a bit beforehand. But, his form tells me otherwise.
In the second picture, he seems to be over jumping the jump a bit, which is natural for green jumpers. Also his knees could be more "tucked up" to his chest, but then again, if he's a green jumper its all natural. For being new to jumping, he looks brilliant. But why so high? If you leave the jumps smaller it will give him time to fine tune his skills. He will eventuall be able to level out how high to jump and soon learn to tuck up when jumping.
I have jumped him over a bunch of little jumps but the one in the pic is only 2'3" but he over jumps everything(he'll jump ground poles like they are 3' spreads!!) he's coming along better and is getting better about over jumping. He's 6.