Hi,
I went to other way around and tried to predict what my model will look like at an advanced stage by doodling.
(Trying to stick with quads)
I think I will use the box modelling way, because of the way I added details by doodling, it is more natural for me I guess 
First I will need a rough shape with a squared chin by subdividing a cube, and add the first loops.
Cheers !