Tips for Having Your Picture Taken
Avoid clothing extremes. Generally, turtle necks and V-necks are good, as long as they don't over-power your face. Bottom line, you should dress to feel comfortable.
Have personal care items with you, such as brush, comb, hairspray, chainsaw (for those really bad hair days), make-up, lipstick, mirror, hair clips, etc if you think you may need them.
Plan to be on time or even a little early so you can put your hair in place, adjust your clothes, and RELAX. If you are feeling frazzled, it will come across in the portraits.
Avoid bare arms where possible. Opt for long-sleeve shirts/blouses rather than short-sleeve.
Avoid clothes with wild checks, stripes, and very busy patterns; especially if worn together!
Suggestions for the color of the clothes:
Avoid bright reds and orange (they battle your face for attention)
Darker colors are generally better than light colors
Colors like white, yellow, and pink tend to over-power the face and make the subject took too pale
In general, the best colors are medium shades of blue, green, burgundy, and rust.