I think you might have told us on the other Q, what month is the wedding? With the grey if you want to glam it up a little you can wear some plums. Especially if the wedding is in winter months. Plumish blush, natural, close to skin color below the eyebrow, some shear plum and silver on the eyelids. Line your eyes so they show up well in the photos, and mascara of course. Lipstick also can be in the plum/silverish family.
If you really shy away from having too much makeup on you can go with a more natural look of brownish-reds.
In my opinion corals are not for winter, although you can do a sheer peachish blush, but lipstick more brown-peach.
I highly recommend practicing a few looks and having someone take a flash photo of you, camera not to close to your face, but zoomed in, so you can see how the makeup looks in photos. My face dissappears without heavy make-up, especially around my eyes. For my wedding I piled it on thicker than usual.
@Imadethisupwithnoforethought I was very happy she bought nude hose. She will be very very happy when she looks back at the photos of the wedding, trust me. I cannot believe what you said. You are not talking about fashion, you are talking hook-up. My husband likes to know women are wearing thong underwear, to him it means that woman likes to, wants to, have sex. He is not to be consulted on these matters either.