Keep Calm & Carry On Spoof

I know this is the worlds most unoriginal thing at the moment, and just about every design under the sun has produced his/her spin on it. So I've been sat on this for a while i finally thought it was about time i artworked it.

Would like to know peoples opinions on the pixelating of the Fuck in the middle which is the one consistant word across all the posters.

High-res can be found here: http://mattnoble.co.uk/downloads/KCACO_Posters_Artwork_V1.jpg