Just by curiosity I started a poll here[1] where I ask to users "what is your three favorite Fedora wallpapers?"
With 135 votes so far, the result is quite interesting.

[1] - http://lonelyspooky.com/2012/09/10/galeria-veja-todos-os-papeis-de-parede-do-fedora-do-fc1-ao-f18/
 
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Henrique "LonelySpooky" Junior
http://about.me/henriquejunior