The person below must give the person above a particular photo to take of themselves that they must upload onto a public album.
They can choose where the photo is taken, what time of day, what clothes are to be worn, what action is being carried out, how long the photo must stay uploaded for, how much of the person it has to show etc.
The person below can also decide whether the person above has to show face in the photo - but if that is a limit, the person above can wear a mask or sunglasses and a hat to protect their identity.
Simples
They can choose where the photo is taken, what time of day, what clothes are to be worn, what action is being carried out, how long the photo must stay uploaded for, how much of the person it has to show etc.
The person below can also decide whether the person above has to show face in the photo - but if that is a limit, the person above can wear a mask or sunglasses and a hat to protect their identity.
Simples