I haven't watched that video for a long time. The song is one of his best, and the video is well done, very artsy. Me not being into art, I had no idea of the painting. As a matter of fact, now that I think about it, almost his videos are interesting. I presume he's had plenty of input into them. My impression is that Robert Plant is someone who only does what he wants to do. My guess is that the few singles without videos are so because no treatment satisfied him or he just didn't feel like showing up.