Sprite Stitch Board!

I've been trying to make a pattern for this and failing, so hopefully someone can make a less sloppy one for me.
I'd like it to be 14 or 18 count, if it can be 50 colors or under and still look right that would be great, otherwise under 100. I'd like it to be about 20"x20". Again, if it needs to be bigger or smaller to be clear that's fine too.
here's the link I got the picture from http://i.imgur.com/Sw79q.jpg
Thank you!

This would be 20"x20" on 18 count. If you could find 18 count black fabric and didn't mind working such a huge project on black, I think that would look awesome and save you a bunch of black stitching. 78 colors I think. Color and black/white pdf's attached. Most colors chosen by PC-Stitch, so trust your eye over the pattern when picking out colors.

thanks so much!!