Evil cat design :)

I am trying to spice up my portfolio, so going back to some characters I designed and making some proper design sheets. The problem with me is that I already know what it looks like, so I don't always see the point in taking the time to put it on paper haha. But obviously outsiders can't see the content of my brain, so I guess I have to:

This is the render of the character:

Here are the sketches: