This is Hubert Jocham's Narziss (the "Swirls" variant):
http://new.myfonts.com/fonts/hubertjocham/narziss/

Thanks Nina.

Just read this post and it seems that the font is indeed Narziss, as pointed out by ryukk.

Thank you all.

Also recently identified in this post...
http://typophile.com/node/69881