Is that a glue stick? Couldn't tell without the title which is a no no in this arena, Ive noticed. A little too much foreground pieces blocking the back. Nice exposure on the glass pieces in back.
Has the dnmc police visited this image? Some may even count the pieces and then the fact that you have black and white or frosted and clear. Well I only see two objects: the pieces and the clear sticky container. Bumping to 8 to offset those counting objects.