Lisa did her demonstration using soft pastels on UART Pastel Paper®
That is a high quality paper that is sanded to give it extra tooth.

She blocked in the basic shapes of the painting.

She is pointing out the red in the foliage.

Here are the basic shapes that make up the painting.
You can see the lines that were drawn on the paper
to divide the surface into thirds.

Her reference materials were another painting of this scene
and a photograph of the scene displayed on her tablet computer.

Once the shapes have been put down, Lisa washes the
entire surface with 91% alcohol. She uses 91% instead of the more
common 71% alcohol because it dries faster with less water in it.

Here is the painting after applying the alcohol.
The alcohol turns the pastels into a wash.

Once the alcohol has dried, Lisa applies more pastel over the wash.

She works the entire painting at once, covering all the space.

Here you can see the contrasting colors, warm and cool
that she has used in the foreground and the background.

The painting progresses, adding warm details to the trees.

The Red in the trees make them come alive.

Adding details to the background.

Lisa uses larger strokes in the foreground and smaller strokes in the background.

Lisa answers some questions from the audience.

The finished painting.