3x life size.
All digital RAW files are bits and bytes meant to be interpreted as color images. There are no true black and white images possible anymore as with the film age. This image is a true black and white image in a sense that the subject is black and the light source is white. It is not a desaturated image. Does that make sense? :)
Elements of design and composition in this image:
Diagonal lines
Form
Texture
Pattern
Color (or the lack of it)
Rule of Thirds
Filling the frame
The right third
By the way, this is a portion of a zipper.