"Alright, so I'm no makeup artist, but as I do photograph brides quite regularly, I think my 2 cents might be worth, well, about 2 cents... but that's better than nothing!
In a nutshell, I think makeup that photographs well is makeup that looks good to the naked eye, and then some. What might look a little much in person will actually photograph really well because the camera doesn't pick up as much as the eye does.
So an even complexion is a must, but easy on the blush! With all the emotions of the wedding day, I think most brides don't need blush at all as the natural rosy cheeks will inevitably peek through. Oh and brides need not worry about unexpected blemishes on their wedding day. They should do their best to cover them up, but your photographer (in your case, me!) should make the extra effort to remove them in post-production. If it's something you're worried about, just mention it to your photographer. I've done this for both brides and grooms and I'm sure that today their memories don't include the stress they felt about breaking out! Their photos show no sign of it so it becomes forgotten!
Another must is a well lined eye. This makes eyes pop which will, in turn, photograph really well. I swear by the eyeliner; it really does work wonders in emphasizing the eye. I'd also recommend highlighter, that's a white shimmer powder or pencil, in the corner of the eyes and under the brow line. This reflects the light and makes the eye pop.
When it comes to shadow, I have to admit that I don't really know what I'm talking about. I'm still trying to figure out what color to use on myself! I'd never think purples would look good yet some of the nicest makeup I've seen on some brides featured some purple eye shadow. I think shadows really depend on ones skin tone, eye color, and features and the way you apply it is also tricky business. If you're doing your own makeup and would like to use shadow, definitely get an expert to guide you through the right shade and technique.
Finally, for lips, I think a little gloss can go a long way. Whether you go for a colored lip shade or something neutral, make sure your lips are always hydrated and/or glossy. This is something that photoshop can't fix!
By the way, I'm a sucker for a red lip, but I know this doesn't suit everyone. It's the vintage lover in me, I guess!"