By pressing the menu you would be able to change the recording size to 1080p.
The exposure controls involve the ISO, shutter speed and aperture which have to be set to a certain amount in order to get the effect that you are looking for. For example the shutter speed should be set to a 50th of a second to avoid motion blur. Another example would be ISO, in natural daylight it should be set on 100, if it is higher than 1600 then the image/video will become grainy and over exposed.
In the menu section you would be able to change the picture style, ideally it should be set on neutral to get a flat video to then edit in post production.
White balance gives good lighting and almost adjusts the colours of the light in that room.
Ideally MF (manual focus) should be used so that during the filming the camera isn't constantly auto focusing and making a weird noise. Auto focus is usually used for photography.
This video is performance based so there is a lot of dancing and lip syncing, also the cuts are very fast to match the song. There are editing techniques used such as a split screen, and using a green screen to create vintage colours giving it a very retro look. The theme of this video is mainly female empowerment, and also relationships stating "one less problem without you" however its made very fun and dance based. This video was about boys and Ariana was represented as a bit of a cute little girl who is single now, this is done by her playful outfit and also the close ups which gave her a chance to look directly in the camera and tilt her head in a certain way in order to make her eyes look bigger in turn making her look much more playful and "cute."