A while back, I started a thread trying to find who made this picture for me:

http://i49.photobucket.com/albums/f281/wackyfox/Commissioned art/fogpiccy.jpg

Anyway, I heard that there's a healing brush tool on Photoshop or GIMP or something like that. Would it be able to fix this degree of damage? If so, is anyone on here able to fix it?