Really interesting game! Loved the art style and colors. Two critiques I have:
1. Something about the art for the cards makes it hard for me to see them. Not sure if it's just a lot of detail in a small space or maybe it's just me. Love the art, but maybe reduce the small details to not make it overwhelming.
2. Not sure if this is a bug or feature, towards the end of the round a few cards flipped over that I had not touched then the flipping animation played again after a few seconds, but I was still able to see all of the cards.
Overall, great job! Very creative game play and use of the theme.