http://www.carolebaker.com/ who tackle a landscape using a scumbling technique to apply thin layers of acrylic paint.
Carole does a lot of plein air sketching and uses her sketch book to plan her studio paintings. The image to the left shows a thumbnail and a water colour sketch for the painting she demonstrated.
Notice also that the sketchbook shows what she has chosen as her palette for this painting. As well as three primaries, she has a light violet, white and Paynes Grey.
She always works with a limited palette and keeps a stack old Ferrero Rochet boxes with a different selection of paints in each. Here's the one she used for the demonstration.
Her support was an MDF board primed with brushed on gesso, which gives some texture, and then coated with emulsion applied with a roller. She had then applied an underpainting using a mixture of the red and Naples Yellow from her palette and would expect some of that to orange to show through and add some dynamism to the picture.
The following images show the development of the painting.