This picture displays leading lines because the legs of the chairs lead your eyes to look up and repetition because the chairs are all the same way.
This picture shows the rule of thirds because the sign isn't in the middle of the picture.
This picture shows the rule Strong Subject because the skull is taking up the whole frame of the picture
This picture shows the rule Angle because the picture was taken from an higher up angle
This picture shows the error of Mergers because the girls area in front of eachother.
This picture shows the error of cutting off body parts because the viewer can't see the subject's head
this picture displays the rule of selective focus because the subject is focused on and the rest of the picture is somewhat blurred
Now for my internet examples