LadyAly wrote...
Question : How important is the hairstyle/Make Up for your Shepard ?
So stick you consequently with your old style or is a change like fresh air ?
For Margaret Emma, make up and hairstyle don't matter that much. In terms of CC, she do have make up but I tried to have it look natural. Herself, I don't think she use make up except for brush to have pink cheeks so she can make people believe she is fine after a sleepless night (and it failed most of the time). For hair, in the past, she used to change her hairstyle at each big change in her life (for exemple, before enlisting in the army, she had short messy purple hair, after doing so, she let them return to their natural color and kept the short haircut but slap
omnigel on them). In the timeline of ME, she had the "classy" hairstyle and, despite changements in her life, kept it all the three games because it was a progressive change. In headcanon, she let her hair grow longer, by the time of ME3, they have almost the same lenght as Miranda's (I was a little disappoint that we didn't have longer hair choice in the CC in final but get over it since the only game I knew where you could change the hair lenght without changing the hair style is a MMO).

"Hum, two hours before hitting the Collector Base... maybe time for a new haircut?"
For the second part, I always kept the same style, I tried to change in ME3 "just to see" but in fact, the fringe who cross her forehead became pretty canon to me, without it, it's not Margaret.