What are the factors which the girls take into account when deciding how they wish to have themselves portrayed in a photo shoot for pics for their profile /album.?

Do the ladies take any advice or do they basically decide themselves ? Does the person taking the pics have an influential role ? Should or do the girls ask the advice or opinion of guys on what men woould like to see in the photos ? Is there much of a process involved or is much of it done on the hoof ?