It's so good, I had to force myself to stop playing to come and rate. Gorgeous artwork and music, the SFX are all spot on.
The only real constructive feedback I could give is that the UI could be a little more refined, my first few playthroughs I found myself searching a bit too long for buttons and explanations of the information I was being shown.
Oh and the shop.. even if you keep the gamble of pick 1 card, it would be nice to see what you "missed out on" for the simple reason of showing off the card art more, because it's awesome!
Incredible entry, well done!