Scrying creates a sensor. It says:
the spell creates an invisible sensor within 10 feet of the target. You can see and hear through the sensor as if you were there. The sensor moves with the target, remaining within 10 feet of it for the duration.
What level of control do you have over that sensor? Can you move it to any point within 10 feet of the target, for example to be able to read in a book they are reading, or to maximize the area around the target that you can look at? If not, where would the sensor appear, and how would it follow the target?