Mark Ellinwood
EF2
Agreed that the newer image without the feature is photoshopped in the ways that you mentioned.On the upper right, graininess and debris bits are smudged away where the vortex was. Also, just below the center of the picture, a portion of the debris cloud is clearly smudged.
Furthermore, the caption states courtesy NWS Springfield, but the NWS site has the original photo with the feature and not the photoshopped version on the actual page: http://www.crh.noaa.gov/sgf/?n=event_2010dec31_pictures