Most Helpful Guy
I like your tanned look, personally, especially in the white shirt--you look stunning in that photo ;)
May I give a few suggestions?
I think wearing dark colors takes attention away from your face, especially when you're tanned, and considering your hair blends with your tan skin tone--well, that combination mutes your face. If you wear lighter colors (sky blue rather than navy, for example) I think it will make your face "pop" more (and lightening the color of your makeup around your eyes may help too).
Have fun at the party! ;)