I thought the character designs were cute, but I feel the comedy sorta fell flat on it's face. The premise isn't a bad idea by any means, the way it was sorta beat in so frequently though without, in my opinion, much of a joke than just "i meant it in the literal way". It wouldn't be such a problem if it was a short thing resolved in a comedic way, but it drags on, like in the throne room for example.
Another character this reminds me of, that holds a similar trait, is the Goku from the Dragon Ball Abridged Series. He is just this big idiot that takes things literally and throws it out of proportion in a way for the opposing character to bounce off of. I see the same thing attempted here, whether derived from this or not, and I feel that it falls short.
Anyhow, not too bad!