I'm a huge Whovian, with a huge bias.
With that SAID, this story was awesome. I rated it a... 6/8? I can never remember that shit. :P
Anyways, the writing was sweet. I really dug the style. However, what I can't stress enough is CHOICES! That's what defines a CYOA! I'm sure if you focus less on items, and more on meaningful decisions you will be writing a feature-worthy epic in no time.
Also, congrats on going Advanced with your first game.