His feet aren't too bad. I would indeed be most worried about his LF. The thin sole you're seeing on all his feet are due to a stretched forward toe thinning out the sole. If you back that toe up(which you did a great job mapping) it'll help him to build some sole and natural concavity. Do NOT carve concavity into his feet, in case you don't already know. It'll come with time and correct trimming.
As for the weird growing patterns, it may just be his conformation. Have you ever taken a real good hard look at his legs/feet? I know my yearling wears down his inside heels shorter than his outside because he toes out in the hinds. I still balance his heels the same and he'll wear them down the way he wants to. His RF looks to be the slightest
bit clubby as his growth is a bit more vertical than his LF but it is very, very mild.
Also, take a look at the hairlines. They should be a straight line. See how on his LF(most noticeable) it's pushed up at the quarters? That means there's excess hoof wall at the quarters and it's jamming up.
One thing I see you didn't mention is that he's got contracted heels all around. That's very common with stretched toes and underrun heels. The bullnosing(laminae pulling away from the hoof wall) is also common with underrun heels and can indicate a negative PA for the coffin bone. If you back that toe up and get his heels up under him, you'll find that his feet will "open up" and expand.
Another thing you can do to help give you an idea of where his feet should be is to draw a vertical line following his new hoof growth, then mimicking that on his heels. It'll show you how much excess toe you've got. You want to get that toe back up ASAP so the flare does not cause the new growth to pull away from the coffin bone. You also want to get those heels up under him which shouldn't be that difficult to do.
I attached a couple drawings of what I thiiiink his feet should look like(I'm new at drawing on pics so take this with a grain of salt) but I did both the LF and the RF. And take everything I've typed as a grain of salt. It's 3 AM and I'm on pain meds. Not a good combination.