Step 5: Use the half-circle at the top as a guide to draw BB-8's head. Make the bottom part of the head extend toward the inside of the body a bit. Then darken the outline of the half- circle to create the shape of the head. Draw a small line at the top of the head, near the middle, for the first antenna. Draw a slightly longer line to the right of the first one for BB-8's second antenna.
Step 6: Draw a circle near the middle of the head for BB-8's primary lens. The circle should be sitting right on top of the horizontal construction line and be divided by the vertical line. Sketch the lens lightly at first, and when you get the shape and placement right, darken the line. Draw an extra line on the lower right side of BB-8's lens for a base.
Step 7: Draw two lines right above the lens but below the top of the dome. The lines should be parallel to each other and slope slightly to the right. Add another set of parallel lines at the bottom of head near the base. BB-8 is mainly white but has some gray and orange sections. These lines are some of the gray sections.
Step 8: Draw a smaller circle, inside BB-8's head, to right of the first one, for the base of the second lens. Use the construction lines as guides for the placement and size. Add an even smaller circle inside for the actual lens. Draw two even smaller circles inside each other, right under the first lens, for an indentation BB-8 has there.
Step 9: Draw a series of rectangular shapes within BB-8's head for the orange- colored sections. First draw two long, rectangular shapes on either side of the first lens, near at the top. Then draw a row of smaller, shorter rectangles lining the bottom part of BB-8's head. As you draw the row of rectangles, alternate between big and small sizes. Only draw the shapes on the sides, not near the middle where the circular indentation is.