I, Roger Winter, hereby affirm that I am the creator and sole owner of the exclusive copyright of the images of my work as found on my website www.rogerwinter.net and have legal authority in my capacity to release the copyright of that work, with the exception of Study for "Silhouetted Trees", 1982. The copyright for the painting Silhouetted Trees belongs to Federal Reserve Bank of Dallas.

I agree to publish the above-mentioned content under the free license: Creative Commons Attribution-ShareAlike 3.0 Unported and GNU Free Documentation License (unversioned, with no variant sections, front-cover texts, or back-cover texts).

I acknowledge that by doing so I grant anyone the right to use the work in a commercial product or otherwise, and to modify it according to their needs, provided that they abide by the terms of the license and any other applicable laws.
I am aware that this agreement is not limited to Wikipedia or related sites.

I am aware that I always retain copyright of my work, and retain the right to be attributed in accordance with the license chosen. Modifications others make to my work will not be claimed to have been made by me.