3. Futuristic Femme-Bot

Blame it on Olivia Wilde. "The one movie makeup trend we might see this year is the sci-fi look from Tron," notes Miller. "This space-age aesthetic would work particularly well on women with jet-black or platinum blonde hair. Stick to silver shades for your smoky eye and use black eyeliner pencil to fill in your lips."

4. Hee-Haw Girl

"Jeremy Scott's spring show was a fun reference to old-time cowgirls," she adds. "Part your hair into pigtails, use lots of mascara, and dot your eyebrow pencil on your cheeks to create exaggerated—and super cute—freckles." The only hard part is shimmying into your Daisy Dukes.

5. Vampire or Zombie.

"The biggest mistake people make with these types of looks is that they use white foundation too heavily," warns Miller. "White eye shadow is a more transparent and flattering way to create a paler face." Miller also suggests using darker eye shadow tones to contour beyond-the-grave cheekbones. As for her secret trick to acing ghostly mugs that are still a little sultry? "Keep your look slightly asymmetrical," she continues. "Having subtly mismatching eye makeup will be disarming. Remember: Not-so-perfect execution can be especially sexy on Halloween."