Yes, but (as mentioned), be careful of redundancy! If you can't tell the difference at a quick glance, they're probably too similar.
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<br><a href='http://fineartamerica.com/featured/the-blonde-leading-the-blonde-brian-wallace.html'><img src='http://fineartamerica.com/displayartwork.html?id=12345432&width=380&height=291' alt='The Blonde Leading The Blonde by Brian Wallace' title='The Blonde Leading The Blonde by Brian Wallace' style='border: none;'></a> . <a href='http://fineartamerica.com/featured/back-where-i-belong-brian-wallace.html'><img src='http://fineartamerica.com/displayartwork.html?id=14540859&width=380&height=291' alt='Back Where I Belong by Brian Wallace' title='Back Where I Belong by Brian Wallace' style='border: none;'></a>
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<br>I admit however, that I often make different versions of the same image, but I may only select one that I think is the best for posting. Besides color, grayscale, sepia, cropped versions, color select, and panos, I also sometimes create different formats such as 2D, and 3D stereo. When creating 3D stereo, I also usually create two formats called "Anaglyph" and "Crossview". The anaglyph is the type requiring Red/Cyan filtered 3D glasses, while the crossview is a side-by-side image requiring the viewer to converge (cross) their eyes while focusing on the middle image that appears for perceiving depth.
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<br>Still, some other images I digitally add different elements and if the result is different enough from the original, I may upload both versions. Sometimes, it's like the OOF (Out Of Frame) image above-right, but other times, it may be something like a Halloween picture where I've added spooky figures, moon, bats, cats, and spider webs etc.
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<br>I also like to take images and create a different environment from the original like this example of a marsh captured at Nags Head, North Carolina on the property of the Bodie Lighthouse Station (Outer Banks). I took four shots of the marshland which was very dry at the time and merged them together for a panorama. I made this version with a curved horizon and manipulated the color, then added planets, moons, and stars.
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<br><a href='http://fineartamerica.com/featured/cosmic-fantasy-pano-brian-wallace.html'><img src='http://fineartamerica.com/displayartwork.html?id=16019497&width=750&height=231' alt='Cosmic Fantasy Pano by Brian Wallace' title='Cosmic Fantasy Pano by Brian Wallace' style='border: none;'></a>
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<br>The original pano...
<br><a data-flickr-embed="true" href="https://www.flickr.com/photos/ur4chun8/21128030680/in/photolist-bkuhX3-yc1Fr3-xZ26mF-xFRj3c-aN3DjK-amFJvj-xwKoGT-cX33Yo-6Dh4aQ-yrj3NQ-rUDrFL-pcvNm9-6Uz6JM-cxQews-zyJ5d2-r28yZc-6BFtay-6BBkor-6BFtij-7NpTkC-6BFtv9-6MEo9Z-7NquT2-zyzXuE-zyzV1S-6BBkR2-7NpCTq-7NqUF1-7NkHpi-7NgKuU-ourD73-6DcWRz-6Dh3Yj-6DcWFB-6Dh45b-6Dh5UE-6Dh5Pd-6DcVXa-6Dh3Sh" title="Brian_OBX_Bodie Light Station Marsh Panorama 1"><img src="https://farm6.staticflickr.com/5826/21128030680_15f8f4de4e_z.jpg" width="640" height="141" alt="Brian_OBX_Bodie Light Station Marsh Panorama 1"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>