I started working a new one! The concept is that she is putting a puzzle together, and the puzzle she is sitting on is space. Here’s some quick photos I took as I worked on it:)
(Click on one of the photos below to view in a slide show)
Line drawing By Maya Hum 2006
Drawing with gradual addition of values By Maya Hum 2016
Drawing with gradual addition of values By Maya Hum 2016
Drawing with gradual addition of values By Maya Hum 2016
Drawing with gradual addition of values By Maya Hum 2016
Nearly finished!
Maya Hum 
Extraordinary Maya, thank you for posting the sequence of drawings.
Thanks Sharon:)