Focus on: Types of Shadows, Lighting, Color, Tint and Color Dodge Adjustments
Parallax Mapping (Work Flow)
This is a good place to start if you're looking to see how other people organize their PSDs - but there's a lot more than that inside!
I'll go over...
* Different Types of Shadows
* Lighting Effects & Color Dodge
* Easy Tinting
* Exporting Properly
This is not an exhaustive list and I'd love to hear what the community would like to learn about - or even what I could expand upon in this video!