Wedding Makeup

My SIL is a makeup artist in New York, she does fashion week...VERY credible...she does beautiful work, and she's doing my hair and makeup for the wedding. I sent her a few photos of makeup ideas that I really like...mind you, I don't know much about makeup and don't really wear a whole lot, except mascara, blush, and lip gloss. I've never had makeup done on me before and would kind of like to have it done with the contouring and pretty looking eyeshadow combinations, not anything extreme though. Those pics I sent, she said that the makeup is pretty heavy and sent me a pic of her idea of Eva Mendez, but she looks like she hardly has any makeup on, kind of what I do regularly. She's more of the natural look, which is fine, but also with me, I'm not photogenic at all, and light colors (my dress is off white) drains the color from my face...how could I tell her that I would like something a little more than what she showed me without feeling like I'm discrediting her? I know she'll do great work, I just know having a bit more will make the pictures of me come out better.