1. Show your personality! You are more than just khaki pants and a white dress shirt show it! If red is your favorite color, wear red. Like stripes? Great! Bring them with you. Simple patterns and bold colors look great on in person AND in photos. Choosing a bold color that is similar to your eye color is an awesome choice too.
2. Add LAYERS and TEXTURE. Think scarves, hats, jackets, blazers, ties, denim, knits and corduroy. Long sleeves under short sleeves, leggings under skirts/dresses. Fun shoes like tall boots or sassy heels. A variety of textures will give your photos some extra punch to go with your great smile.
3. Be a head turner. Wear that top that fits just right. Or that dress that makes you feel like a million bucks. It is a fact; clothes that make you feel good make you LOOK good. If you have the option, why not wear something that makes you want to smile?
4. Avoid logos, bold patterns and character-wear. Leave Dora and Diego at home. Character-wear and logos may be precious in person but will leave you clueless in twenty years when you look back on your photos and try to figure out who that is on your shoes. Keep it timeless and focused on your faces, not your clothes.
5. Along the same lines, pick clothing that fits nicely. It should be neither too tight nor too loose. The clothes should hang on the bodies well, without folding or creasing. If you want the focus on your beautiful face don't skimp on the clothing. And always dress for full-length shots, here in Hawaii I think barefoot is often best.
Coordination is the name of the game for family pictures. Don't wear a uniform but do wear things that compliment each other.