So I'm just gonna rate every category with some comment to it.
Gameplay: Easy to pick up concept, good difficulty (compared to what you've picked), very cool card abilities, and nice goed ware reference btw lol. The only problem I had, was that if you had no card left at the position the enemy was, you had to constantly click the bell and wait for the enemy to finish you (maybe I oversaw something?).
Art: Good art style, smooth transitions/animations, fits the gameplay
Sound: Fitting sound effects, good music, nothing to criticize here too.
Innovation: Of course, there wasn't a crazy concept here. The most innovation comes from the cards and their ability.
Theme: That's sadly the most disappointing. It seems like you've really wanted to make a card game and had to fit the theme in somehow.
Besides this critic, it is still a very solid, cute card game; don't get me wrong :)