Draw a small circle for the head
Add a vertical guideline down the center of the face
Sketch the jawline and chin under the circle
Draw the neck below the head
Block in the shoulders with broad lines
Sketch the torso as a tapered shape
Add the chest and abdominal guidelines
Draw the upper arms extending from the shoulders
Add the forearms with slightly tapered shapes
Sketch the hands and fingers
Draw the waist and hips
Add the upper legs with muscular shapes
Draw the lower legs below the knees
Sketch the feet in a standing pose
Add Goku’s spiky hair around the head
Draw the eyes, eyebrows, nose, and mouth
Add the ears on both sides of the head
Sketch the gi collar around the neck
Draw the sleeveless top and torn edges if desired
Add the belt tied at the waist
Draw the wristbands and boots
Refine the body proportions and muscle lines
Clean up the sketch and erase guidelines
Ink the final lines
Add shading and color with orange, blue, black, and skin tones