I really like it, I love the visuals and that its simple to play.
It's harder that it seems. I liked that you restore the health between levels, and the new enemy types.
One thing I would love to see is how to react when getting hit. I will add one frame with the sword lifted so you can tell that you cannot attack in that state. And some way to push back the enemies because if that happens, its really hard to recover after that.
Still its a pretty well made game. congrats, great work!