ISO

1: The camera is zoomed in closer it seems like.
2: At the lowest ISO u can retain the most detail and to have the highest image quality.

ISO 3200

ISO 200

3: The highest ISO is when there is not enough light and you want to capture a image quickly.

Shuttle Speed

Fast Shuttle Speed

Slow Shuttle Speed

1:
   a; fast shuttle speed
   b; fast shuttle speed
   c; slow shuttle speed
   d; slow shuttle speed
   e; fast shuttle speed
   f; slow shuttle speed

    a; slow shuttle speed
    b; slow shuttle speed
    c; fast shuttle speed
    d; fast shuttle speed
    e;slow shuttle speed
    f; fast shuttle speed
2: Aperture Priority-pertaining to a semiautomatic exposure system in which the photographer presets the aperture and the camera selects the shutter speed.
    Shutter Priority-pertaining to a semiautomatic exposure system in which the photographer presets the shutter speed and the camera selects the aperture. 
    Manual-Pertaining to the hand or hands.  

Aperture

F2.8

1: The face

F16

2: The smaller the Aperture is,the higher the Aperture is.
3: It makes the background either  clear or blurry. Affecting how the photo looks.