This is how i made the head of the character, with curves and nurbs curves.

To duplicate the eyes, eyebrow and mirrored, is "shift D" (to duplicate) ctrl M + X (to mirrored)

To make a curve into vector (v) with the bezier Circle, for the eyes. ( not work with nurbs)

To close a curve (c)

to every object, i give some bevel deph, like 30 or 40, that is for the final toon shader, with the nodes.

Curve nurbs are very handle to make some 2d forms, is more quick than the bezier curve, and much more easy to animate later.

For the toon shader, i use the color ramp, and the normal in the Material nodes.

Soon i gonna show how animate the character.

Nick