Rolf Steinort at http://blog.meetthegimp.org/192/ has posted a photography challenge.
The best chosen works will appear in Issue #5 of GIMP Magazine planned for early December 2013 release.
The due date is September 1st 2013.
Rolf goes over all of the details and shows you how to form the display of images in GIMP. He also provides a template to make the job easier (http://dl.meetthegimp.org/mtg192.zip).
Just make sure that you follow the image size details:
-3600px by 3600px at 300dpi for magazine publishing
I think this is an amazing contest. I love this type of photography composition, and can’t wait to see the results of what you create.
If you would like your image published in GIMP Magazine, simply use the Submissions form to fill in the details with a link to your on-line image.