I basically use oil, and always wet on wet. This allows me to paint different thick layers in order to give me the texture with which I see the person. I always visualize the finished portrait before the start, trying to keep it somewhere in my mind along the process. This helps me to know where I am going to.
http://www.monicasubide.com
musica : Ferran Barrios http://www.musicaivida.wordpress.com
video : Raffaella Leonardi http://www.arteclips.com