
Leaves through a pipe… you’d be confused if I didn’t give it away! Good luck using this for something. I was careful to keep the greens printable while editing.
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Download the source image (8MB, Canon Rebel XTi RAW file).
This work is licensed under a Creative Commons Attribution 3.0 License. Credit me as Richard X. Thripp, and link back to richardxthripp.thripp.com or rxthripp.com. Thanks!
Original publication.

Some leaves on a tree, through a rolled-up poster right in front of the lens. The reflections on the glossy paper inside make it look like a vortex… a vortex of doom, of course. Green and black are the colors of spring.
Canon Rebel XTi, EF 50mm 1:1.4, 1/160, F4.5, 50mm, ISO100, 2008-02-29T12:19:33-05, 20080229-161933rxt
Source image. Darkening and more contrast is all the was needed.
Free high-res stock image.

Source image, compiled from the Canon Rebel XTi RAW file using the default settings in PhotoFiltre Studio.