A tree branch swaying in the wind, with a UPS truck on the highway behind it. I like how the light and blur turned out. I closed down all the way (F22) so I could use a 1/20 second shutter speed, then holding the camera steady while snapping away to get this. The branch is about to leave this world; it’s just your imagination! That’s what makes it ephemeral. 
Canon Rebel XTi, EF 50mm 1:1.4, 1/20, F22, 50mm, ISO100, 2008-05-09T15:05:17-04, 20080509-190517rxt
Source image. I dodged (brightened) the leaves and added contrast with the curves tool.
