WOW! I love how the background lines evoke the feelings of the character... If I can only point out one slight flaw in an otherwise perfect (to my humble opinion ;) image i think you could have worked on the posture in the third panel so her elbow wouldn't "invade/disappear into the second one. Anyways I love it! Have you thought about adding some colour in a very simple way (maybe keep the dominant grey put play around with the tones of her dress?