This has some amazing video tutorials on how to do amazing eye makeup for certain anime characters such as Levi from Attack on Titan, Sebastian from Black Butler, Izaya from Durarara, etc. Be sure to check it out if you need help with ideas of how to get just the right look to bring your favorite 2d characters to life!
http://goboiano.com/list/3092-19-anime-make-up-tutorials-to-change-how-you-cosplay-forever
*Sami-chan