Do you have any pictures of the make-up look you're going for? Here's a photo campaign of brides and the make-up is very natural. Also, remember that make-up has too be a little heavier for photos...you and your FI are probably not used to that
at all. That said, you can have a full face of make-up and it can still look pretty natural.
This bride, for example:

BEFORE

AFTER
She has a lot of make-up on, but it looks natural. She has foundation, powder, eye shadow, mascara, eyeliner, blush, lipstick and lip gloss. But the colors are pretty neutral and not far from her natural colorings.
Have you talked to your makeup artist about making you up to looking you on your best, most relaxed and well-rested day? That could mean making your complexion look flawless with some well match foundation and powder. Some peachy blush, and
neutral eyeshadows...brown black mascara and dark brown eyeliner. If you want to skip the eyeliner, it will look less "made-up" but be sure your make-up artist balances your eyes with your mouth. Also a lot of natural flattery can be added to your face
can be done with simple highlight and contouring powders. I suggest collecting some pics of the look you like and take it from there...
Here some more pics:










And here is a more "glammed" up look, that still is soft and natural looking:



