Back in 2009 I did a series of noir-themed sketchbook drawings called Sketch Noir. I drew everything with a brush pen (this one, if you’re curious) straight onto the page with no underdrawing or planning of any kind. Even the dialog (when there was dialog) was usually improvised on the spot.
Eventually the series ended, but I’ve always wanted to revisit that style. It’s not exactly the same as what I was doing four years ago — as this time I’m working digitally and I can actually make corrections or plan my layouts — but my hope is that it captures the spirit of what I was doing then.