I do not think it's filler content, a few simple sketches can create a kind of idea or it can be an inspiration to anyone else, do not say that. The second one seems very interesting, I imagine it in color and I'm sure it would be a great piece!
Do my followers want me to publish generic and frequent publications, or do I want them to publish high quality publications less often?
It would be great to see quality content from you, which stands out. However, sketches like this seem peculiar and great to me.