A relatively small request: Please have the pets have some things to say as the adventure progresses!
I kept checking back in with them, hoping for just a little tidbit or two as the game went along, but there was never anything. This was particularly jarring when changing zones (such as to Act 2) and still having options like "So you like it here?" despite the hostile environment all around. Even just something for Act 2 and then something for Act 3 would be much appreciated.
I would also really like it if
Scratch told you about the post office in Act 3 and gave you a little quest to take him there. Otherwise, the interaction with the kennel master feels very awkward, where you have to be the one to bring up that you have the dog, and then likely refuse to return Scratch to them. I think it would flow so much more smoothly if Scratch asked to visit, was seen by the kennel master, and then things proceed from there.
Edit: And even if you're not using Speak With Animals, just something like noticing that Scratch wants to go somewhere, and the narrator reminding you that Scratch's owner was a postman, could easily get us the quest nugget.