Just some ambient swells to showcase the different "shimmer sounds". These are the ones most popular for shimmer, it seems. Sans maybe the Line 6 octoverb setting. Goodrich for swells.
Empress VMSD and Strymon Blue Sky:
Strymon Timeline and Eventide Space doing something similar:
(dunno why the video seems funky, must be imovie.. but sound seems to work fine)