Now that most of the large forms have been draw, we can start laying in some detail to really bring this guy to life. Starting with the forehead crest, draw some small, triangular shapes within the triangles from earlier. For *his* right eyebrow, draw three extended Z-shapes across the eyebrow shape. It's literally like if you took a rubber Z in both hands and stretched it open. These angular lines give the robot a very intimidating look. On the opposite eyebrow, use curved lines to continue the asymmetry. It still looks like he's raising his eyebrow a bit. On the lower eyelids, we're back to wavy, worm-like S-shapes that match the curve of the eye socket. Use smooth curves on one side and jagged, angular lines on the other. Continue working on the lips, which seem oddly broken, and formed from small metal panels... Oh yeah, he's a robot. And yet, he has these two snake-tails dangling down from the sides of his moustache. It's like a... how do you spell it? Fu Manchu? Draw in the dangly shapes and then lay down some curves to connect the chin shapes together. Before moving on, draw in some loose, rectangular shapes. These will bulk up the neck area.