If you are using a camera with a zoom lens keep the focal length around 55mm or greater. A short focal length will distort the subject at close distances. It will make whatever is in the center of the photo look larger and out of proportion to the rest of the subject.
Short focal length lenses and setting on short zooms can give a 'fisheye' appearance.
Bear, Anna, Molly, Ossie, and The Countess Lisl von Schlaf
An Unhappy German is a Sour Kraut!