Background and Foreground:
the first picture the background is in focus while the foreground is not
in the second picture the foreground is in focus while the background is not
Cropping a Picture:
in the first picture you can see the whole scene
while in the second picture you only see a certain portion of the scene
Framing a Picture:
in this picture the building is getting framed by the tress around it
Motion:
in the first picture there is a slight blur in her hair showing that the wind was blowing it
in the second picture you can tell she was walking by her leg being bent but the picture is not blurry
Depth of Field:
here you can see the depth of field by the line in the middle of the wall going all the way through to the door
Balancing Elements:
in the first picture the sign is in the middle while in the second picture the sign is pushed off to the side