Hello!
I'm new here so this is my first time giving critique on these forums. But as a fellow artist I love to get other people's opinions on my works, so I guess I could give a few myself. :)
Anyway, considering your image, I'd say it's definitely a good start to drawing faces. You've got all the proportions down, which is a vital part of drawing a face without making it look too "wonky". What you could now is focus on the facial details, bit by bit, such as the eyes, nose and mouth. I understand here you portrayed a semi-realistic face, but even so, some of its details look a bit off. For example, the nose lacks shading, which makes it look flat. I suggest you spend some time studying how light falls on all the different parts, which would enhance your drawing. Here's a link to get you started: http://anatomicalart.tumblr.com/image/70811952471
I hope I managed to help somehow, and keep up the good work! :D
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