It's very interesting. I wish the presentation was more clear; the cards are so small and shoved in a corner. The eyes aren't naturally drawn toward that direction. Most Blackjack games put the cards in front of you on the bottom of the screen.
I just felt confused with so many different odd cards so frequently, and then they also add tarot cards. I'd probably introduce new cards and concepts at a slower pace. Here, I felt every new card was going to mess me up, so I kept skipping to grab any.
Besides all that, this is a good game. You should be proud of it.