Google image search – MONA LISA dance

Slideshow: www.tagseoblog.de (german, please use google translation) | This video shows the changes in the google image search (-de) during six weeks. Each picture shows one day. There are a lot of changes on the result pages. Eg – Number of picture (top-right) – Same picture, but different domain (URL) – Same picture, different size (pixel) – New “design” (June 18 to June 19) – Brocken Layout: align=left (May 28) – and of course, many position-changes It is like a dance of Mona Lisa in the google Serps… Is it because of changes in the “structure” of the images (on- or offpage)? My picture (site) hasn’t chenged since months, but it is allways between position #7 and #11. So: perhaps google chenges fluently the algorythm … !? I don’t know