This is the overview of the class "Sculpting Croc In ZBrush" a 2hr video course available at create3dcharacters.com/zbrush-croc-sculpt/ ($10 subscription cancel anytime).
Croc is based on the fabulous concept art by James Castillo Murfish! facebook.com/murfishart
3d Model By Instructor: Andrew Silke
The site subscription also comes with 50hrs of training for modeling, rigging texturing, lighting and animating characters. Tools and hotkeys are also available.
Create 3d Characters Site Subscription is $10 per month and you can cancel anytime, no lock-in.