Step 1b: The height of a young girl will be roughly six heads tall. That means that however tall you drew the head, her proportionate body should be about six of those same-sized heads stacked up on top of each other. A girl that’s even younger would be fewer heads in height. An average full grown woman’s body would be seven or eight heads high, depending on how tall you want to draw her.
Drawing six heads can be tedious, so you can just roughly estimate what six heads is or lightly sketch horizontal marks all the way down to help you determine the height. You can also use a ruler for a more accurate measurement.