Each of these gives a different feeling and Nancy liked the drama of the bright blue green.
Here is a larger study.
Carol chose a compliment of the yellow flowers for her background.
The second part of this exercise was to lay a background wash of on dry paper. By keeping the paper tilted and keeping a wet bead at the lower edge of the wash it is possible to paint around a subject and end up with a smooth background of color. Georgina was able to lay down an absolutely smooth yellow background.