I assume she wears the ring often, if its her true personality then it should be included. From her style and appearance, the ring compliments the photo well.
My eye also jumps to the ring but I think it fits in with the "image" I guess is the word I'm looking for. I also like the fact that there's hardly any color. Not necessarily a black and white but not the selective coloring thing either. I thought it was at first with the lips being so much more colorful than the rest. Of course I'm a newbie to this thing so who knows lol.