But I have to say, that you could have done the head (and face) of the girl in the foreground better. It's irritating that the girl has got a wide head (Actually, not bad, but in this, it doesn't look right) and the others in thebackground have got round heads. And the eyes of her are standing a little bit too much apart, don't you agree? That should have been improved.
But besides of this, It's brilliant! You managed light and shadow really well and that you used pencil and ink (and no coulours) makes it just better.
And then the title: Alone within other. Amazing!
You are in the middle of a classroom, children are playing and having fun. And you are sitting alone, studying. And your only friend is a bird. Which is cute, I just noticed.
Great work! ^^