There would be 4 quarter notes in a 4/4 time signature.
Mainly due to the social interaction with others. Also, because of how it is often shown to an audience of people.
Some good titles are “last breathe” “aquatic hope” “agua submerge” “it sinks” “floating hope” “river sink” “agua desperado” “death flow”
A posed shot is exactly what it sounds like. It is when you have your model or models pose for a picture. A candid photograph is a much better choice.