I have the dress, now can we talk make-up?

So I found a dress (which I love and ended up pairing with light gray shoes and nude hose), now I need some ideas for make-up. I rarely wear make-up and when I do it consists of blush on my cheeks and eyes with a little mascara. I really want to do it up right for the big night but I am not sure where to start. Vitals: I am over 40 with gray hair, blue eyes, and fair skin, the dress is light gray with darker and lighter accents. Any help – down to brands, colors, and application – is appreciated!