The last one in the first set is as random as they come (holding the camera outside the sunroof). The first one in the second set could not have been more planned (neutral density filter of 9 stops and post processed accordingly). The same goes for the last shot in the second set. Polarizing filter is the best. I recommend it highly. My favorites are # 3 in set 1 and #2 in set 2. What does that mean?