Drawing the head of a person is a daunting task. As there are so many features involved, we often end up messing it. We focus on the features such as eyes, nose, lips, and hair and end up drawing these features too big.
The best thing you can do to avoid this is to take some time out to study correct head proportions. Even though every person is unique, the face is divided into thirds for everyone.
Also, the amount of space that you need to leave for the forehead for adults and children is somewhat easily understandable. Once you understand these two major factors, you might see a big improvement in your drawing.
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