| THE EYES HAVE IT
Less is more.
Light has a hard time getting to the eyes when there's more "stuff" (technical term) blocking it, like false eyelashes and mascara.
Do a search in Google, to look for "model headshot makeup professional". Some of the best shots are models with a small amount of makeup, unless it's a dramatic close-up of the eyes.
I feel the eyes are one of the most important aspects of a portrait...even if they're closed. Try not to lose the beauty of your eyes, while trying to enhance them. Less IS more.
Remember, your eyes won't be as full or as open as they would for an indoor photo session. Your eyes will be protecting themselves from the sun. Go light on the makeup. Your photographer can usually remove blemishes and add color or brightness.