This is Kalianthra, an elemental elf. She is elemental due to the fact she has power over the elements (just for those that cannot figure it out). The markings on her face show her greatest sway over the elements red stands for fire, blue (tears) water, white (though it is slightly blueish if you look really close) stands for air/wind, and green for earth. Kalianthra's 'face paint' is actually markings on her face that make her different from the other elementals. And the tear drop in the middle in her forhead shows that she is the leader of all elementals, the Queen.