What affects fashion and how?
The world and everything in it affects fashion. There are scouts that walk among us, studying how we dress and look in out clothes. From ancient Egypt to the 90's fashion designers, such as Louie Vuitton and Valentino, study how fashion has evolved and just add quirks and twists to one look to create another.
Fashion is mainly affected by how pretty you are, if you arent pretty then the fashion will be very ugly and bad. If you are a pretty person then you can basically wear anything that's not outrageously atrotious.