They look pretty good to me...can’t tell about the shape, though from what I can see of the bottom of the ear crop/stitches, it looks like it should be good. I don’t see any swelling or unusual discharge. He should learn pretty fast not to scratch...it hurts if you scratch!
And so long as he doesn’t have an infection or something like that going on, the crop incisions themselves shouldn’t bother him too much as they continue to heal. He may be scratching now because the foam on the top of his head is bothering him a bit. I don’t think I’d try to take it off, but if it comes off partway or all of the way on its own, I’d remove it and leave it off. You can let the ears dangle, or tape them tip to tip across the top of his head....they will heal just fine.
And as you said, they can’t be posted until they are healed COMPLETELY--no sores, scabs, or irritated places.
It is well worth it to learn how to post the ears on your own...that way, you can adjust any little problems that show up right away, instead of waiting for a vet appt. If the post pops out of his ear at the bottom or if his ears/posts get wet, you will need to take the posts down right away and repost them. It’s so much easier if you can do that on your own.
If his ears have an increased discharge or smell, or you see sore oozy places, you will need to leave them down until they heal and maybe even head to the vet for treatment, depending on how bad it looks.
Posts popping out of the ears is a common problem new-to-posting people have. Just keep at it..usually that means you need to adjust the way the post is riding in the ear, or how you are taping them. You will feel all thumbs at first, but you’ll get it fairly quickly. Really.
And if you have any problems, just fire your questions right at us. We WILL ask for pictures.....even if things are going fine.
That goes without saying.