Step 6: Draw a short, curved, U- shaped line on the right as a guide for the bottom part of the narwhal's body.
Step 7: Draw a triangle-like shape on the right side as a guide for the narwhal's tail or flukes. To draw the guide, first draw a straight vertical line, then connect it to the body with two smaller diagonal lines.
That's it for the initial sketch! From this point on, press harder with your pencil to get a more defined sketch.
Step 8: Draw the narwhal's eye as a small oval on the lower right side of the head. Use the initial lines as guides for placement. Shade the inside of the eye except for a tiny circle to represent glare. Add a couple of lines around the outside for extra detail.
Step 9: Use the long line on the left as a guide to draw the narwhal's tusk. Follow the basic path of the guide and draw two lines that come to a point coming from the head to create the tusk. Sketch lightly at first, then darken the lines when you get the shape right. Make the base thick and the tip pointy.