Very nice picture! I like the way you have composed it, the faces dont look posed at all. I also like the way your aperture ensured that the background is out of focus yet ensures a crisp and well-balanced foreground of the music class. I think a lot of people's first impressions would have been to get the children to play their instruments, but doing it this way - still conveys the same thought along with a joy and happiness that they obviously have for their music. Well done.