So I have actually made some progress on my game this past week. Specifically, I've ported over almost everything I had on the stand-alone site to Drupal, and I've got a lot of administrative back-end functionality that I didn't have before. I'm in the process of porting over the user-facing elements (the ability to create toons, view other people's toons, browse the game encyclopedia and so on) and should have those done shortly.
Then of course will come the fun part: making the game actually playable! Of course, there's a long way to go, but I feel good about the progress I'm making on it.
I've also made some minor progress on the Gallery module and also my Photographer module (details to come!) and expect to see them on my site sometime soon. I'm really getting in to Drupal module development at this point and I have to say that I'm finding some really cool bells and whistles that are making my life a lot easier.