It's all about the family. This is not to say, don't go with your unique style. But if everyone is dressing in wild and varied outfits, you will lose the focus. If you are photographing a baby or young child, it's best to do less. Concentrate on their adorable features rather than some over-the-top holiday dress. I love white and black. Try to avoid heavy patterning and design that will take away from your child's most precious features.