If you're using the main camera and you haven't changed your model's orientation too much, you'll want the "Z" dial to move closer and farther away. But before you do that, try just changing the focal length like Huolong said.....try numbers from 80 to 150 and your figure's face will look a lot better than it does at default. And if you'll be moving your model around alot, try parenting the camera to your model's head, so it tracks it.