Honestly, he looks awful for a one-year old panther needing to shed or not. His skin is falling off his legs and it doesn't look like a shed. Look at the hind right knee of the first picture you sent and the picture of his right leg in the second group. I think
@kinyonga is on to something--it very well might be a systemic infection.
@Andee Look at how sunken into the eye socket his eyes are--the hollow ring around his eyeball. Look at how you can see the ligaments/spine at the base of the tail. You might be being fooled by the blurry photo and how full his casque appears. I also think he has edema as his casque looks bloated on the top and behind. That can't be a fat pad based on how the rest of his body works.