I tried to paint portraits of my relatives; they are all done with acrylics on 50 x 65 cm paper, and were drawn after one or more photos. I display one or more photos on the screen of my Mac, and draw the image onto the paper, using pencil and eraser.
It isn't the same as drawing from a live model, and I will eventually ask people to come sit for me. When I get better at this.
The first one here is one of my father, wearing a hat in the style of the Czech 'Good Soldier Svejk':
My mother (who was it that said 'a portrait is a painting of a person's face, where there is something not quite right about the mouth'? ):
And my mother-in-law: (This one is probably the best of the bunch)