[I was going to say something about them all having a different flavor. But, as I was also going to warn Donald about spending too much time feeling his photos, I figured it could lead off into an unfortunate direction concerning licking...] Definitely all three affect the senses differently. We are fortunate here to see such an in-depth exploration; both from different camera techniques, to choices made in post processing. I'm thinking an interesting Monthly Challenge would be each artist posting a group of three to five images exploring the same subject? [Each artist would pick their own subject, ior we could pick a common theme.]