User blog:ReverendHerby/Writing a prequel

One of my favorite stories I've read on here was Do Not Feed The Animals; after reading it a third or fourth time, I started having ideas to write a prequel to it, in hopes of giving it a little more depth, as well as giving myself an easy way to write my first creepypasta. I ended up forgetting about the idea until late one night months later, when I wrote the entire thing in one sitting, which can be found here. So, I kind of wanted to ask; do you feel that the prequel I wrote adds depth to the original story, or do you not feel like it contributes?