Darken the inner wheel wells and the headlights' pupils. Use short lines to shade the tires, axles, front grille, bumper, bumper guards, and roof lights.
Fill most of the eyebrows and hair with lines to darken them. Shade the inside of the cape with diagonal lines. Now your monster truck is ready to roll!
In the next article, let's move on to a character that has been portrayed as fun and friendly, but also mighty and mischievous. Learn how to draw a cartoon mouse.