Hello Samuele!!
Awesome artwork! I really love the way it took. I love the first one with the boxes and the Duomo.
I'm not sure if the rest of the logos follow the guideliness with the italian colors at "fudcon", even so I think you could add the colors to the big boxes (like the second arwtork) but alternated.
once again, awesome :D
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tatica
Maria Gracia Leandro
http://www.tatica.org
http://www.fedora-ve.org