For the final project in one of my classes, I had my students make a digital doodle illustration where they created an image in Illustrator, Photoshop, or Painter without a plan, just started with a mark or shape and then worked from there, letting the initial mark and subsequent reactive marks build up to a final image. I do this in demos quite often, especially in Illustrator because I'm demonstrating specific tools. When I demonstrate in Photoshop or Painter, I usually start out with a reference sketch. Above is my digital doodle demo that began with a light blue circle.
Here is the final couch illustration, previous post is here showing the sketch with collage. The client liked the idea of no background so I went with just the line work and flower pattern. For the final, I re-sketched some parts and thinned out the dress shape a bit. Also added color to the line work.
This is a sketch for an illustration I'm working on this week, for a story about a woman reconnecting with her daughter. The woman's face started out as a drawing based on Marc Chagall's Bella in Green (now in the picture frame) but I noticed one of my bus sketches worked better and a profile better represented the tension between the woman and her daughter. The floral pattern in the dress is sampled from a section of the upper left corner of the Chagall painting. Tonight, I worked on the couch, refining its shape and adding some leg detail.