research and Planning (Target audience for magazine)

My college magazine is aimed at both male and female readers.  The age i am targeting at are in the range of 16 - 20 year olds who are studying part time/ full time A levels or BTEC's.   The interests of the teenagers that go to this college are either sport related, performing arts, technology or hair and beauty.  I think the students who i am targeting at will be in either working for middle class, in society.