In the same vein as the "traces on the snow" sequence, the shadows cast on snow by trees and pylons... then on a terrace, the sea, ice, desert or even salt by furniture, clouds and various elements from recent digital compositions.
It's worth noting that the beginning and almost the end of the first movement are based on real shots, without any digital processing. The rest of the sequence is based on other shots, barely digitally modified, with a few additions of drawn elements.