No pixels, all vector. This is a work in progress; so far only vector shapes have been drawn. After this custom made vector brushes will be applied to detail the pores, wrinkles, creases and hairs. Progress sequence at: https://communicats.blogspot.nl/2018/03/vladimir-putin-vector-portrait.html
Below is the vector outline view, showing the shapes in the penultimate state.
These are the previous 9 stages.