Step 6: On the top, left side of the body, draw a long, horizontal line as a guide for the stingray's tail.
That's it for the guides! From this point on, press harder with your pencil for a more defined drawing.
Step 7: Inside the circle, on the top, right side, draw a small oval for the eye. Sketch lightly at first. When you get the shape and position of the stingray's eye right, darken the lines. Inside, draw a small slit for the pupil. Draw a couple of curved lines under the eye to give the head structure.
Step 8: To the left of the eye, draw a couple of curved lines for the respiratory opening called a spiracle. The stingray's spiracle should be bigger than the whole shape of the eye.
Step 9: Draw a curved line above the eye to create a thick brow. Darken the guides at the top to create the brow for the eye on the other side of the stingray's head. Follow the curvature of the guide and give the line an extra bump to emphasize the thick brow.