Portrait based on a photo

I am arranging the portrait on multiple layers,
beginning with the base colours red, blue and yellow.
Picture 1 uses many grafic elements and it is still very
raw.
On picture 2, I begin with refinements, the nuances.
It becomes much lighter, the primary colours convert
to colours of the skin. Now I am working with much
white and ocher. I like the most to use pure pigments, which I convert with binder to applyable color. Further layers
follow, I  try to express the characteristic,  the unique, which makes each face individual.
The youth, also the colour choice, which constitutes the finished picture, is to express freshness, friendliness, life courage, joy.