I wanted to add a doodle pattern to this portrait. But, I haven't practiced drawing this style for a long time. I decided to rehearse. Although these sketches look quite simple, and it seems that I drew them in 15 minutes. In total, I spent 3 hours on them. And I still want to spend the same amount of practice to achieve the lightness of lines and patterns that I had in mind.
I drew with a pointed pen and gold ink.