The border is a little hard to see.. :/
I tried to use more fractals and a C4D in this one.
The rest was applying the stroke to a path with the pen tool. More of a filler/blender.
The great thing about this render is that all of the colors are very earthy, all in the same basic scheme. Even the eyes work.
How would you suggest doing a good light source? I would rather not use a filter...