Step 11: On the top part of her mouth, draw two small triangle-like shapes for her vampire fangs. On the bottom part of Marceline's mouth, draw a small arc for her tongue.
Step 12: Marceline's hair is a bit tricky, so it's divided into two parts. First, draw the front of Marceline's hair. The right side starts at the top of the vertical construction line, moves down toward the right side of her face then angles back up, creating a point at the bottom. The left side starts at the top of the vertical construction line, moves down over the top part of her torso, then creates three points before moving back up and to the left. Use the image above for further reference when drawing Marceline the Vampire Queen's hair.
Step 13: Use the initial oval and line as guides to draw Marceline's face and neck. On the right side of Marceline's neck, draw two small dots to represent her vampire bite.
Step 14: Draw the arm on the left side by using the initial line as a guide. Follow the path of the line as you make the arm thicker. Draw a few curved lines at the end of the arm to represent Marceline's fingers.
Step 15: Use the initial torso shape to draw Marceline's body and tank top. Draw a curved line on top for the shirt's neckline and a few curved lines on the right side for the folds in the shirt. The bottom of her shirt sits below the halfway point of the circle that makes up her lower torso.