Resources:

My Resources
My Brushes and Tutorials
Some art advice (in the last section)

Art tutorials
Marco Bucci Tutorials – Really Good
Android Arts Tutorial – Really Good
James Gurney Videos
Cube Brush Videos
Ctrl Paint Videos
Proko Videos

Resources

Anatomy 360 – Really Good
PureRef – Really Good
Sketchfab 3D Anatomy Models
Basic Anatomy References
Allusion

Plugins
Photoshop Brusherator – Really Good
Photoshop Perspective Tool – Really Good
Photoshop Coolorus Plugin 
Photoshop Lazy Nezumi Plugin
CSP Pencil Brush

Cool Brushes:
Aaron Griffin Brushes
Danar Worya Brushes
Yizheng Ke Brushes
Evan Lee brushes