I made this for commercial art class in the spring of 2007. It took about 12 hours to make. The only thing I don't like is how some of the hands in the background don't blend completely, and are half transparent. But it still looks good.
I have made several revisions to the original piece, most notably changing the image of the zombie arms in the background. I was never satisfied with that low res picture, and I have recently purchased Genuine Fractals 5, a tool that let me take the original file and upscale it to print quality (while still looking good). This is my final copy, the way I intended it to look.
I have made one final revision. I've completely remade the poster, and it's new full size is 24x36. It will now be available as a print, if anyone is so inclined.