Step 11: Finish the helmet by drawing the brush portion by using the rectangle guide. Draw a small shape near the middle that connects the brush portion to the helmet portion.
Step 12: Draw Marvin the Martian's eyes as rounded rectangles below the horizontal construction line. Draw a circle inside each eye and shade in his pupils. Draw a line above each eye to indicate his brow. Also darken in the bottom of the head guide for the bottom of this Looney Tunes character's face.
Step 13: Tighten the left arm by fattening the guide. Remember that the top part is hiding behind the helmet. Tighten the shape of Marvin the Martian's hand by curving the lines of the circle so they look like a fist. Marvin wears gloves, so draw a ring around his wrist to indicate where the glove begins. Also draw three lines inside the glove to indicate folds.
Step 14: Draw the right arm and hand exactly how you drew the left. Fatten the guide and tighten the shape of his hand. Don't forget the glove!
Step 15: Darken Marvin the Martian's torso and draw his skirt. Draw a few lines to the skirt to indicate the thickness and flaps.