Ok this is how my mesh would look plain ofc. id create a Simplyfied version on the pc with fatted lines (wich ill post as a reply if im not on time) and after which this can be created in a 3d modeler.
old:
https://img849.imageshack.us/img849/7341/0201050341.jpg
new:
all scales are slightly off and the top view looks rediculous but it aint the nose useally is sharp and it looks dumb from the top 9/10 so hair should block it when u duck or something this hairstyle (ponytail) useally uses bones or 1 bone construct at the back of the head. ... ok that's it for now 1 hour left before i can go to ma home and ill see if i draw something else in the mean time id be working or googling.
Edit: had to change the right one looked abit angry.