Done! Not going to miss this one, I must say. I started off in A5 format. After 6 days I realized that sucked so I halved the size, then halved again and again, and ended up with ca. 3x3 cm on the last 12 days.
18 drawings in, and I think I've established that this activity is not really for me. Will keep going for the next12 days though, just for the heck of it.
