In the week leading up to your wedding, keep your skin as hydrated as possible to create the best canvas for your makeup. Use a restorative sheet mask once a day to whip your skin into tip-top condition.
Your makeup deserves a happy ending too. To ensure that your makeup lasts from your walk down the aisle to cake cutting (and beyond), prep your skin with a primer. If you plan on applying eye shadow, use an eye primer as well.
Even out your skin tone with a liquid foundation. Warm it up on the back of your hand and apply it to your face, pressing it into your skin to create a seamless finish. But choose a foundation without any SPF; the sunscreen in the formula may make you appear washed-out in flash photography.
Apply concealer around your entire eye -- not just underneath it. Use a brush to create a "v" shape underneath your eyes, then apply a bit underneath your brow bone and in the corner of your eye. Blend, blend, blend it in a circular motion. This draws attention to your eyes by evening out your skin tone.