Is he shedding healthy?

Hi guys, My little guy is at my sisters to babysit, but she send me this picture and she's wondering if he's ok. Well, in my opinion he's just shedding. But how long does it take for him to fully shed? And y'all think he's ok & indeed going to shed?

Hi guys, My little guy is at my sisters to babysit, but she send me this picture and she's wondering if he's ok. Well, in my opinion he's just shedding. But how long does it take for him to fully shed? And y'all think he's ok & indeed going to shed?