Aaron Blaise is a former Disney animator (and fantastic all-around artist) who is using TVPaint Animation . Check out Aaron's art tutorials on his YouTube Channel :
(Subscribe to his channel !)
Creature animation walk cycle in TVPaint :
Animation pose test for proposed feature film "Art Story" by Aaron Blaise. Animated in TVPaint:
Animation tutorial on using blinks effectively in character animation , by Aaron Blaise, animated in TVPaint:
There are many more animation and painting tutorials on Aaron's YouTube Channel:
Aaron also has a fantastic series of videos on how to animate Quadruped movement . It's currently on sale for $40 for 3 tutorials. Highly recommended.