I would pick pictures like these for the front page of my magazine as it would be a fashion magazine for teenage girls.
They would be either mid-shot or medium long shot shot types so that most of their clothing is visible.
Different types of fashion e,g. Retro, Classic ,Geek-chic, Boho Etc..
Girls from different ethnicities with different types of fashion sense.
Could also include Celebrities (teenage or older) for front cover that alot of teen girls look up to (for fashion).