It was a bit vague though. While the scripting was functional, you could have been more specific about what things did. Since so few lines of code were used in it, you could have either added more or elaborated more on each bit. For instance, you could have gone into more detail about how sounds are coded as variables and whatnot. Not only that, but your scripting style could use a bit of improvement. While you don't name variables "cow" and "boat" anymore, there are still a few things that would clean up your script so it was nice and shiny before it was put into a tutorial.
Still, good effort. 5ed.