The photographer captured the moment in the middle of the speaker's speech, although there is quite a bit of extra space around the speaker, there is enough of his body in the frame for him to still be the main focus of the shot. It is also candid, you can tell because the speaker is not looking directly at the camera and is in the middle of talking.
In this shot there is way too much extra space in the background due to the frame not being filled properly. It is not necessarily a bad photo it just could have been closer to the subject and maybe at a diffrent angle. It is candid because the he is not looking directly into the
