I'm into ombre lips these days, they are a great way to make lips look fuller! The simplest trick is to put lighter colour in the middle of the lips and a darker one on the edges and corners of the mouth. These lips were done with long lasting liquid lipsticks by Pretty Zombie.
On the very corners of the mouth there a touch of Black Cat, a pure matte black. The purple is Three Witches and the blue in the middle goes by the name of Blue Moon. The matte lipsticks don't blend well, so the ombre looks a bit blotchy, but it was much better in person. Lip pictures always show each and every mistake you make! IRL no one looks at your lips from a few centimeters away ;D