I had tried to freehand colour in a background on this after I had coloured the characters, which turned out to be a big mistake.  I ended up taking a razor and cutting the background out of the picture, and put them on a sheet of white paper (which is why I've never put the original up for sale).  They were going to be on the deck of a ship, which would have been neat, but I still like the pic, as the white background allows for more focus on the characters, which are pretty yiffy :)
