Judy is my favorite character, as I've suggested. Nick is my second favorite. Even so, I find it's easier to write from Nick's perspective--and more fun, I guess because we're so different. My third favorite character is Clawhauser--who doesn't love Clawhauser?! :)--so he shows up a lot.
I don't have a particular headcanon, with the exception that Nick now has his own apartment. I usually just start each story where the movie left off, and most of these are one-shots. I don't typically see the need for original characters, as the movie gives me more than enough to work with, but I do include them occasionally to advance the plot of the story, and/or to provide complements to Nick and Judy's personalities. In that way, such characters seem to function most like extras in a movie.
The big exception is the stallion in "Falling Fur You" . He is based on a dear friend of mine and because of his origins, I'm rather fond of him. He shows up in more than one piece; the Table of Contents found on the Library page notes which stories he appears in, and in what order. Be on the lookout for him in future stories. :) Learn more about him and my other top OCs using the link below.
You may have noticed that Judy and Nick have minor/supporting roles in many of my more recent stories. As stated above, this was not something I intended initially. That shift isn’t a slight to them—in fact, I love them as much as I ever have, if not more; I enjoy “seeing” their interactions with and reactions to various characters. Judy and Nick are the driving forces behind “Zootopia”, and in my version of the city itself, they are the ones who hold everything together. WildeHopps is the model/proof of how this amazing city of diverse species functions at its best--this is always reflected in my stories, but some more so than others.
Genre/Plot Lines
I tend not to focus on drama and/or sad storylines. Don't get me wrong; I've read some very well-written, imaginative stories along those lines. But those subjects aren't my style. I usually go the romantic comedy route. Speaking of comedy—I love wordplay, so I use lots of silly animal puns! :)
Similarly, although I admire the movie's social message, my intention is not to use these stories as a political platform. Instead, I keep in mind that it is a Disney film, and stay within the parameters of what that stands for.
Editing
I do all the editing myself. I try to fix mistakes as soon as I catch them, but I might not catch them all.
Research
I do basic research to verify all animal-related terms.