Compared to last winter, I see much better use of the torso -- he's getting his upper body out over the front leg much better. I was able to pause a freeze frame at release and his position there was darned near perfect.
A couple of things meant as constructive criticism:
1. His head at finish jerks a bit violently. I would suggest smoothing this out a bit. It could be a sign he is landing on his heel, though that is hard for me to see in the video.
2. He does step closed just a tad but I'm not sure it's enough to worry about. I might experiment and see which works better for him.
3. 40-50 lbs. is too much to gain in 10 months and I regret to say it's not all in the legs. To progress, he will need to get serious about his conditioning -- both exercising and eating right.