You don't understand. That's not all her neck. Her shoulders are slanted like this: \
If you actually check it, the neck is fine. Compare the length of her neck to her face. Then, do the same with yourself.
Nope. The distance from my collar bone to my jaw is about the same as the distance from th bottom of my jaw to the top of my lips. The girl's neck in the picture is from the bottom of her jaw to her cheek bones.