I think my posts for Inktober are going to be a bit delayed depending on my access to a scanner, but here is my drawing/painting for the first prompt: Ring. I decided to try a quick drawing of Saturn, which turned into a painting, but it’s done entirely in black ink (with a bit of white ink for the moons of Saturn).
I used small drawing pad of mine that was not well suited for the wet ink wash I did. I also used Winsor and Newton’s black Indian ink and some Higgins white ink.