IPad, I coax you into submission. This little landscape is the outcome of a practice session working not from a real site but from memories. I have now traveled through enough Virginia countryside that I can reproduce its forms, textures, and colors accurately from memory. This scene "really exists," but is not a photographic reproduction of a place. It occupies a middle position between true "plein air" (done completely on site) and a rendering from a photograph (almost always derided by fancy "fine" artists as lifeless commercial art).
Autodesk Sketchbook Pro really is a terrific digital painting and drawing app. It's got a wide variety of "pencil," "pen," and "brush" tips as well as a number of very useful textures that can depict foliage, grass, hillsides, and clouds nicely. The images are produced in 72 DPI, which is not a high resolution, but suitable for the relatively limited power of an iPad. As I have said before, the user interface and the onscreen tools are annoying, but workable once you get used to them. Just don't hit that thing that looks like a door with a blue glass of water in front of it, which is very close to the "Save to Gallery" screen button. Don't touch that blue and white thing or else your painting DISAPPEARS DONT TOUCH THAT
Autodesk Sketchbook Pro, about 5.3 inches x 5.9 inches, September 25, 2011.