Use the following settings.

Face
Eye Color: Blank
Facial Hair: None
Skin Tone: Fair
Physique: Slightly buff (two to the right of default)
Height: Slightly above average
Hair: Your choice
Torso: Ninja Gi (Color 1: Gold/Orange, Color 2: Dark gray, Color 3: Same as Color 1)
Pants: Ninja Duds (Color 1: Dark gray, Color 2: Gold/Orange)
Shoes: Ninja Tabi (dark gray)

Accessories
Ninja Mask (Color 1: Dark gray, Color 2: Gold/Orange),
Right arm: Fingerless (dark gray)
Left arm: Demo Wrap (dark gray)