It was created and drawn by Jean Jacques Chen also well known as L'apprenti roi des singes in the french community forum.
TVP Animation was used most of the time during the work.
The new custom brushes connections and settings of the TVPaint 8 technology were essential to obtain a such rendering. (blood, chinese brush, leaves, grass, etc ...)
The particles generator FX was used for the waterfalls, the multiplane camera FX was used for several sequences like the one with the river boat, and of course, Jean Jacques used a lot the autopaint FX

Great Work Jean Jacques !

here is the link :
http://tvpaint.free.fr/tvpaint/Chen.mov