She was born in the darkness. Her eyes are of the moon colour while her hair is kind of night. She lives in the darkness, but reaches to the light... to the moonlight.
I like your restrained use of color and light; everything does seem moonlit, but the silvery quality of the light is what really carries the impression for me. And I love your take on Luna's 'corona'; it looks like the sort of exotic, flaring halo one might see during an eclipse. I also like that despite her western name, some of her jewelry and the patterning on her corona are distinctly eastern in flavor. Beautifully executed.