Story and Expressions are very good. I enjoyed the film and that deserves 5 stars.
Though I think, you need some development to do. Your character has great visual charm and you seem to know its design by heart. Maybe a bit too much by heart. Meaning: I could very well imagine something animated by you in a way more extreme way (saying that with your style being kind of abstract already). Go wild, go more to the surreal realm of imagination and spread your wings. Doesn't have to be all storytelling consistent, Doesn't have to be realistic. I'd enjoy some boldness.