True about the ponies. But I've also written an epic length story of them turned into dogs. And while Neal-as-Kitten is as common as sick!Neal, I've written Peter as a cat, which I don't think I've seen elsewhere.

I also love rare pairings, which have limited audiences. I think I'm the only writer in the fandom to pair Moz and Jones, and El and Reese.

And you're right about Peter - I adore him. But it didn't take much in canon to make him an ass. I think, if I was worried (and maybe I am), I'd be more concerned with my portrayal of Elizabeth. She's not the endlessly understanding and devoted spouse that she was (for the most part) in canon.