I love this! Really good shading, nice emotion, and it's so realistic! This is great! Keep practicing and soon it will be hard to determine if your art is photography or drawings! It could be just a bit more original. Maybe a few things here or there. But otherwise, it's wonderful! Keep up the great work! (By the way, just a tip, it would make your art look slightly more realistic if you put a few ruffles in the hair. If it's supposed to be all pretty and petite, it's fine! Don't go overboard in the ruffling if you decide to try it.) Also, by the way, color is a good way to bring out emotion. Do some art with colors!
Very nice work! You have a good sense of shading and lighting. Anatomy looks well done, and I love the fine details of the cello and her body. (:
The overall look you get when you first view the work is amazement (at least from me ). The theme works well, there's a lot of tenderness in the pose.
If I had to pick out one thing that could be worked, I would consider the perspective. There's a lot of vagueness, due to the lack of floorboards. So she could technically be sitting in a different position than I can see, so I won't comment too much on it. But I would personally make the perspective a little clearer, so there's that little bit more depth. (:
Also, and this is a personal thing, I enjoy a sense of realism for hair. I can tell she is a performer, because of how straight she keeps her hair. Though, when you're in performance, no matter if it's at home, or in concert, no matter how recently you straightened your hair, there's ALWAYS a few strands that go awry. That extra touch of realism can make all the difference.