[color=00aeef][i][h1]Unfortunately's Perfect Drawing Class![/h1]
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Tip of advice: Don't make the front side of your characters' faces a bit too straight and long, else the face will look too long also. Try doing a more bent curve.

Example:

On the left is what you're doing right now. On the right is the recommended face shape.
[img]http://i.imgur.com/Jwnq5pq.png[/img]

In addition, for better heads, draw a circle and a line cutting across it, then draw the recommended curve starting from the far point on the side of the circle where a quarter of the character is facing. Continue drawing the rest of the facial features, remove the circle and the cutting line later when you're done.

[img]http://i.imgur.com/34UBliU.png[/img]

Note that the facial line's chin end reaches up to the tip part of the cutting line that slides past the circle.