Having tried a wide variety of stylus types including brushes, DS stylus, homemade headphone wire pen, even a Jot Pro, but I always come back to the rubber nib which has some major advantages for me.

The Fight Club and Clockwork orange pics were both done on the free one, while Metropolis, Boondock Saints and V were all done on the Full version.

I've posted a couple of pics so that you can see the difference between the two versions of Sketchbook. It almost seems like cheating, but as the original is only used for the outline, and color reference, you'll realize that the rest airbrushing, blending and texturing are entirely up to the person behind the stylus. It'll work on any image whether drawn from pop culture, as my demo prints are, or from images that are taken using your own cell phone. This technique uses a 'base' image, strictly, as a reference and the drawing is created using layers where finally the original image is deleted. As I said, it's not my standard medium of work so I'm certain there are others, out there, that are more adept at it than I. This instructable is on a technique I use to create realistic images, tho I can't say I created it because I really don't know. I found it interesting that using the tablet was more effective when used employing airbrush/canvas techniques, and that the deficiencies with the over sized stylus could be easily overcome by employing that small shift in style. I've done quite a bit of airbrushing and canvas work, but I've never really been into drawing as an art form. There are some fantastic aspects to Sketchbook and some parts that could use a bit of improvement, but it's definitely something that, I feel the positives outweigh the negatives.

I started off with the free version and often used it to sketch out plans and designs for new projects, or to modify images into stencils (which I'll get into later), but I never really used it to it's full potential. Not to sound like a commercial here, but one of the best apps I came across, if not the greatest, was Autodesk's Sketchbook Pro. The first thing I did when, when I purchased my first 10' android tablet, was to was to scan the play store for apps that would help my in my obsession to create.

Painting in autodesk sketchbook