How about some gloss? Nymphette, Prrr, Nico, Enchantress, and Underage are some good ones to complement the l/s you already own. I think some other good l/s are: Twig, Brave, Snob, Sequin, Lame, and Hug Me.
Lip pencils: Creamstick Liner in Beurre, Pencils in Spice, Subculture, Stripdown.