These are digital bouquets that wither over the span of 24 hours. The gifs below are a preview of the 24 hour time lapse. The pieces bundle 24 paintings produced in Keynote into one .HEIC file. The wallpaper updates once each hour.
Click on a .gif to download that wallpaper. Unzip the file (if needed). Go to System Settings > Wallpaper > Add Photo > Choose... and select the file.
Thank you to Mackenzie Davidson for development help.