Step 11: Now draw the top of Ben 10's head by again starting at the top of the left ear and going around the initial oval shape. At the top of Ben 10's head, draw two spikes to indicate his messy hair and one final V shaped spike to the right.
Step 12: Tighten the shape of the left ear by drawing it more angular and drawing a few lines within it to indicate the inner ear structure. Darken the ear on the right too.
Step 13: Darken the bottom portion of the original oval to create Ben 10's cheek, chin and jaw. On the left side of his face, draw a few angular lines to indicate the back of his shaggy hair.
Step 14: That’s it! You now have a nice sketch of Ben 10. You can stop at this quick drawing for a rough, sketchy look or go for a more finished look by continuing to the step below.
Step 15: For a more finished, inked look, carefully draw over the final sketch lines with a pen or marker. Wait for the ink to dry, and then get rid of every pencil mark with an eraser. You now have a finished inked drawing of Ben 10! You can stop here or go to the final step to complete your Ben drawing.
Final Step: For a completely finished Ben 10 drawing, you have to color it. Inside the shape of Ben 10's hair, color in a wavy line with light brown to represent the sheen in his hair. Color the rest of his hair brown and his eyebrows dark brown. Ben 10's eyes are light green and his skin is peach. If you don’t have peach, improvise and use yellow-orange or light brown. Experiment! That’s it! You now have a completed drawing of Ben Tennyson from Ben 10.