Thanks for all the comments guys. To all those that don't get it, it's a play on CYMK the colours used for printing (Cyan, Yellow, Magenta and Black). Black is K rather than B as people would confuse it with Cyan which is blue.
Agrimony - sorta, it's not meant to confuse people but seeing they're not in the right order as they haven't worked out their letters yet so they probably wouldn't have worked out the order.
DivineAna, it's perfectly printable and follows all the Threadless guide lines. There are a lot of CYMK design, but to my knowledge this idea hasn't been done before.
This characters look amazing, the art style is real trendy, the idea is hilarious, the colors are great, the stroke on each character was pretty color to make them stand out real well. The whole idea and design was executed perfectly. To honest all of your work looks worthy of something. Great Job and Good luck. I look forward to seeing your work around some.
Check out mine plz.
http://www.threadless.com/critique/50886/Dark_and_Shy_at_Day_Bright_and_Wild_at_Night