First off I tried it in a sketchbook. page by page. A guessed 5 minutes each. It was tough!
It's Ok but there were problems with the volume and shape consistency, especially on the 3/4 turn
So I tried it again, this time working on my light box with animation paper and a set timer (discipline!)
This one works better and I'm pretty happy. There are still a few inconsistencies, but the turnaround looks much smoother.
Such a great test of observation! Looking forward to next month!