Brook is balanced with the rule of thirds, the main focus is not in the center.
All of the bottles repeat every row, even though they are different colors, they are still the same shape.
The angle of the picture is shown from worm's eye view.
The mask takes up the whole frame, thus resulting in filling the frame.
The metal outlining the objects creates a border/ frame
The rail leads in a straight line upwards.
Brook is in focus while partial of the background is blurred.
The lights add more light than needed thus resulting in a dark spot towards the back of the picture.
I cropped off Brook's lower half of her body in this photo.