While i was exploring the free 3d software Blender i´ve found a very good 3d modeling resource named Sculptris. It´s very intuitive, practical and above all, for free.
Sculptris belongs to Pixologic, the creator of Zbrush, and since my wallet cannot afford it (at least) for now, i´ll glady continue to explore Sculptris, which allows pretty decent results even if with some limitations.
The process was the same as in the first round; pick a sketch, this time from my mini sketchbook and start working from there.
Sadly i could not replicate her hair as the software wouldn´t allow to use asymmetry without damaging the whole model.