The pastel paintings like the "Grand Sport Convertibles" are hand painted on a Motion Computing tablet computer like the one shown below. Motion Computing's web site.

The tablet computer has a pressure sensitive touch screen that you can draw directly on. When used with a piece of drawing software like "Alias Sketchbook Pro" drawing on the tablet screen is just like putting pencil, pastel or paint brush to paper. To learn more about Sketchbook, visit Autodesk's web site at: Sketchbook Pro Homepage

At $199.00 it is a bargain for all that it can do.

One of the benefits of painting or drawing on a tablet with Sketchbook that you don't get with the old fashioned pencil and paper is the use of layers. You can think of layers as separate transparent sheets of paper in a stack that you can draw or paint on as well as take in and out of the stack. So you can, for instance make a pencil sketch on the first layer of your painting and then on the next layer begin painting, using your sketch as a guide. In fact, that is how the Rodney Mann pastel paintings are done. First a pencil sketch of the all the items in the painting is made on a separate layer, then pastel like strokes are laid down on other layers to form the painting over the top of the pencil drawing. Once the painting is complete, the pencil sketch layer is turned off and the painting is saved. The painting is then taken into Photoshop for formatting, addition of text and other tweaks.