This is stunning, you don't see many rat suits and I like the fact it's realistic without being a horror rat. I just came into a large amount of fur fabric so I'm sorely tempted to try making something myself... don't think it'll turn out like this though!
It had reminded me of a book I read some time ago, called Sunwing by Kenneth Oppal. There are two rat brother characters fighting over the throne. Romulus and Remus. I guess that's just what I imagined Remus would look like.