You'll be disappointed to know that science and art have figured out that the whole left/right brain notion is false. One of my senior level classes in Art Theory and Philosophy dealt with this in a rather boring way; we were shown brain scans etc and shown how there are parts of the brain which deal with imagined images and recalled images as well as perception. They were located centrally and there abouts, not at all on one side or another. Its just more fun to separate out people based on the idea of left/right. Sorry Mr. Bob. There is evidence that people learn differently though, visual, global, auditory etc. I might posit the idea that those people who are truly global or in the least visual/sensory or tactile make the best renderings. I agree with you about the paintings you posted. They were very nice.