I love the contrast of tones in this picture. And the way the dark trees echo the black robe, and the hard yet impassive look of the model. Constructive criticism: whilst the posture makes for a nice composition, what's the samurai doing here? Not protecting herself from an oncoming cut or about to make a cut, because the sword's incorrectly placed for either. Yes, I study Japanese swordsmanship but I'm not being pedantic for the sake of it: the better the pose the better the picture will be, surely? A photo of someone running looks better than a photo of someone standing with their legs apart and bent pretending they're running. There's a line where realism and artistry intersect and finding that point makes the best pictures.