Well, the day I planned to do it, I didn't get started until after 2 pm. I didn't want to be finishing up at 10 or 11 that night, and I didn't want to put it off until tomorrow (again). 4 hours would have to be enough. 19 sketches in 4 hours--let's see--that's...
12.63 minutes each?! Factor in page turns, bathroom breaks, random distractions...better call it 12 minutes. I found this handy countdown timer to keep me on task. Then I drew. I drew and I drew and I drew! Here's what happened:
Actually, what you're seeing here is close ups of parts of the sketches. Full page views are here.
I am very happy with the results! It's still a long way from final artwork, but those 4 hours of work were very productive. I did all 19 pages! See more in the 12 Minute Sketches photo album on my facebook page. I am adding drawings daily. What fun! I should apply this time limit thing to more of my creative work.