My friend BillatLakeGeorge has a couple of GIK's art panels on his back wall above his couch and I can personally attest to the quality of these photo tranfers. These panels really need to be seen in person to truely appreciate them IMHO.
It has me wondering if it would be possible using a silkscreen cover to do this same thing over a diffuser and keep it functional? The thought occurred to me as I own 3 Furutech Room diffusers that uses a silk screen cover and they would be oh so more appealing with artwork. So I just thought I'd throw that idea out there for your own diffusers, fwiw.
Oh yeah, a picture of a dude's back does nothing for me personally but whatever floats yur boat.
Cheers,
Robin