Diana, I think this is a brillant idea and I am sure it will be a very successful one.
I think the first question one has to ask is "what is missing in teenage magazine today for black girls?" It is evident when you stop at any of them randomly
Teen Vogue: Fashion Starts Here: teenvogue.com there are not enough black girls or boys featured inside the magazines or the covers for that matter. They are not addressing black teenagers, and I am sure most black teenagers skip all the pages that are not relevant to them when reading the magazines, which is a waste of money in my opinion.
Any teenage magazine despite who their target market is should at least cover the basic questions on: makeup, HAIR (black african, mixed race), fashion, diet,music, games & gadgets , book club, black celebrity gossip, dating, where to get help regarding Health, legal, finance, education, etc. places of interest, events, online blog, Money saving tips (remember the majority of black teenagers are not from wealthy families, and some work part time to support themselves) and most importantly to cover stories on young role models in the community e.g. interview with Estelle or Kano on their new album.
For reseach maybe you should get a copy of Alfred Fornay's Born Beautiful which covers makeup advise for black teenage girls. And also spend time watching America's / British next top model, which will give you an insight on some young black women on style, insecurities etc .You could also do a very brief questionnaire and ask teeenagers on the street about their thoughts on a black teeenage magazine.

Click on image
As a teenager I was totally misinformed about black women's hair and makeup ( I dont think I was even comfortable in my own skin), I wore the wrong makeup shade forever and used the wrong hair products without even realising it and it didnt help that most of my friends were as clueless as I was; simply because we followed what the fashion bibles were telling us, I was eventually rescued by a black professional makeup artist. And he did for me what the magazines, televisions had failed to do for me; sorted out my hair, makeup and style , a life lesson on what
compliments black beauty.
To answer your question on the image of the magazine, I think Suede was an excellent depiction of black style.
