That's it for the guides! For the next steps, use darker lines for a more finished drawing.
Step 11: Lightly sketch the shape of Ariel's eyes on top of the horizontal construction line and on either side of the vertical construction line. The shape of the eyes should consist of an angled line on the right side similar to a backward letter L and a curved line on the left side. When you get the shapes and placement of the eyes right, darken them. Use a thick line as you draw the outer edges of the eye shape.
The eye on the right should be a tiny bit smaller because of perspective. Draw a series of thick, curved, spiky lines above each eye for The Little Mermaid's eyelashes. Draw about four eyelashes per eye. Any more will start to look a bit crowded. Use thick, bold lines for the bottom of the eyelashes, and then end them at a point at the top.
Step 12: Draw a curved line inside each eye, on the right side, for Ariel's irises. Sketch the lines lightly at first to get the placement right. Add a tiny circle at the top to represent glare. Inside each iris, in the middle, draw a small circle for the pupils. When you get the pupils right, shade them in using a dark value. When you shade the pupils, don't overlap the tiny circles with value.
Step 13: Draw a small curved line above each eye for the eyelids. Draw another curved line, this time longer, high above each eye for Ariel's eyebrows. Each eyebrow is actually composed of two curved lines on top of each other to create thickness. Notice the spacing between the eyebrows and the top of the head, and between the eyebrows and the eyes.
Step 14: Draw a curved line to the left of the vertical construction line for Ariel's nose. The line starts next to the eye on the right, then curves out at the bottom to create the nose's tip and ends at the horizontal construction line. Add two tiny lines to the left of the tip of the nose to represent the nostril.