The music is great! I love card-based games and I think the mechanics are really well-applied. it's fun and doesn't get repetitive. As for the graphics, they speak for themselves; the game has a unique identity and the visuals in the dialogue are a great touch.
I have a couple of suggestions for improvement: I feel like the movement could be much better with a few changes, like waiting for the character to finish moving to a tile before being able to change direction (In my own game, I handled this with a Godot signal, but a simple boolean variable would also work). Also, having a variable that completely locks movement during dialogue would be helpful, since that doesn't seem to happen when the cat talks to you before dying.