Hi Otto, sometimes we just need to relax and let it go, the pattern will come itself, depending on your mood and inspiration. I am glad that you have captured the moments of the drawings, it is interesting to learn what you do and how. What pencils or markers you used. I thought that they are mechanical ones graphite but it looks like ink too :)
I do prefer graphite pencils and sticks, as well as charcoal. But at times I also use these Micron pens, ever since I participated in the collaborative work of Antipodes. But when it comes to ink, I prefer a dip pen. The Micron pens are just convenient for travel.