I recommend the Aphrodite's night, the one with the greek inspired looks.
or go with Zen / Japanese inspired ambiance--butterflies / minimalist designs , sushi's / maki's....No need to wear actual Japanese outfit, you can just make the ambiance feel like it, or try adding words of wisdom from Mulan the movie, add songs, or mulan song for a twist..have all the reason to push your party in a garden setting
or lastly a modelesque style where you can set up your photo wall then customize a ramp just for you, try at least 3-4 outfit change so you can own the theme , do a title for your debut like " MY CATWALK: 18th bday of Loiz"
