“These video tutorials is created by artist Ashraf Aiad; who shows how to create a detailed 3d model of a dinosaur Head using Autodesk’s Maya along with 3d modeling and sculpting software. These videos cover Mesh Preparation, Sculpting, Displacement map and rendering. Hope you guys enjoy watching these tutorials…”
http://www.cgarena.com/freestuff/tutorials/mudbox/mudboxworkflow/index.html