For a scary gothic ghoul wear a short black dress and a silky black scarf as a wrap (optional).
Then put on black lipstick, eye shadow, eyeliner, mascara and colour your hair in black also (water based face paints can be substituted for all of these).
Paint your nails in black and wear lots of bracelets. Wear chunky heels and there you go - instant gothic girl!
Thanks to Emma for this great idea!!