Answer:
This photograph uses line through the lighter textures on the road that lead to the viewer and create perspective in the image. Value is seen through the stark variation from dark, to midtones, to lighter tones.
Explanation:
Value is the range of a color (or lack of color;like black) from dark to light or light to dark. Line in art can be anything from a literal line in a drawing to how a set of stones or street lights are lined up in an image to create the appearance of a line of subjects/objects. Both are great art tools and I encourage looking into them more if you are interested!
Shadowing mirror since uh yeah
Depends on which set of two black keys you are referring to
