If you want to go as a Twilight vampire, try to lighten your skin tone as much as you can, powder and dont' use blush to make you look almost statue like. Skip the blush and just contour and highlight, use some MAC Vanilla Pigment or a MUFE Star Powder For Highlighting to give the illusion of effect the sun has on their skin.
Darken your lids and line your undereye with a violet lilac matte powder to give the illusion of dark circles because you haven't fed in a while.
Use amber like contacts or red, depending on your mood.
Stain your lips with a red lip stain and give it a bit of a pout with some gloss.
Hope this helped.