Step 6: Under Marceline's body draw two long, curved lines as guides for her legs. The length of her legs should be a bit shorter than the length of her head and torso combined.
Step 7: Now draw a big, long oval that envelopes Marceline's entire body as a guide for her long hair. The shape should be similar to a pickle, and it shouldn't encompass the bottom part of her legs.
Step 8: That's it for the initial sketch! You have the basic Marceline shape. Now go in and tighten your drawing. From this point on, press harder with your pencil in order to get darker lines and a more defined sketch.
Step 9: For Marceline's eyes, draw two dots sitting on top of the horizontal construction line and on either side of the vertical construction line.
Step 10: Under the horizontal construction line, draw a small shape similar to a bean to create Marceline's mouth.