Eric Ryan is a senior concept artist at Sony Computer Entertainment. He's been working as a concept artist for 7 years, and featured in a number of publications like Imaginefx, D'artiste, Blue Canvas and Advanced Photoshop User.
He also teaches creature design at Gnomon. This is a video explaing the basics of painting a head from start to finishi. Lighting and color principles as well as understanding form are explained. This is Part I