What I like above all is how expressive and clear the girls emotion comes across. Second favorite thing that strikes me is how you've put just enough details to create the image; it has a sense of airiness. The color is minimal but adds directly to the mood too.
I'll be honest, I had a hard time finding something helpful, other than 'this is great' to say. It took awhile but the one thing that I notice is how bright the ear is among the shadows. Once I noticed that, I had a hard time seeing past it. Probably not a big thing though since it didn't jump out right away.
You have received my first five star rating, because of the over whelming beauty of this piece, not only is it simplistic in overall looks and aesthetics, I can tell that it took a certain amount of skill to produce a piece that could stand the test of time. I especially love how muted the blue seems against the star whit background. I even love her expression, it seems to be a look of pleasure, or a look of longing, I do not even know which one, but that is what makes art good, where no matter the interpretation the piece does not lose any power, or any of it's majesty. Thank you giving us such a fine piece.