that’s what i got so far :
need adjustment but lazy to render again.
and here the leather shader for download(blend file) can increase the displace for more bump :
https://www.mediafire.com/file/ry42ok1tjvc3lq1/crocodile_leather_by_islara1.rar
that’s what i got so far :
Get some anatomy references, a proper basemesh before you start working on clothing or anything else.