I've done a picture that I wouldn't mind sending off for the Conbook, but it's on paper as I haven't got a good enough skill in digital drawing (as of yet) It is in full colour and all, but I don't know if it is good enough if I scanned the image in and made it into a transparent image. I can have a crack at turning it into a digital piece if it makes it easier for the CF staff to turn it into an appropriate file format for the Conbook, but as of yet it's just a coloured paper drawing.
If that's okay, then great. If not, then it looks like I'm going to have to whip out my tablet and get it digitalised.