Edition 2 - 2022+:
Explorations on potential subjects for illustrations. Between 2-4 hours per drawing
Edition 1 - 2017:
I recently took a few days off during which I bought a marker drawing cardboard so I could work my shoulder endurance (I don't draw standing up a lot, I'm no Bob Ross).
I did one drawing per day, each inspired by my Saint-Cuthbert project https://www.artstation.com/artwork/PkVGy and taking between 10 and 30 minutes.
I admit I missed Ctrl+Z, but it was a pretty fun exercise.
*BTW This was a drawing project not a photography project so please forgive the flares.