I liked the whole magical girl themed chess concept, and the character designs. I also like how you've got many different characters/pieces, which adds a bit of replay value to the game.
The animations may be a bit slow for some, but for what it's worth, I like how each of the pieces have their own unique animation.
Just one issue though. Clicking "Exit game" from the main menu causes the game to freeze. Tried with both the browser playable version and downloaded from the itch client. Perhaps the "exit game" can be removed if it's meant to be browser playable?
Overall a great game.