Let me show you the second gesture of the stroke the point how to build a portrait using only points. I can do it with pencil, but you can see it better using an ink pen. For the darker rear of the hair, you can help yourself out using two pens. I took the king in the darkest area of the portrait, setting the utmost darkest value. Then I make the outlines then I separate light from darkness and then I go as much as possible into details. I will work partial and not gradually the whole face as the first example.
If you feel uncertain, you can always use the first method of creation. The point itself is very big for the small size of the face. That's why the fine transitions are not possible anymore. Of course, in the larger area like cheekbone, the core shadow will dissolve in the form shadow. But in the small areas like nose, mouth, in the eyes, it's impossible. Nevertheless, the drawing will not lose on three dimensional appearance because of some fine transitions in the single elements.
When the form and core shadow are properly set, in the larger areas, it's enough. This kind of stroke summarizes the details. The reference photo is favorable for the point manner because all What is needed is light and darkness. This kind of stroke has its own character. It transmits calmness lightness dissolving Mather fogginess. The object fades away in the layer of the background, also a kind of impermanence and instability.
It appears and disappears at the same moment. Let me show you my artwork I'm doing right now. It's the same principle, but on 400 meters the principle of light