I like this idea! I think you could change something to change the full RNG feeling of taking pairs (right now is something like "you choose two cards and you get points or not", maybe change it so cards don't disappear if you get 0 points)
Also i would explore the bunny idea some more, like make them change with another card at the end of the turn and making an animation to show it, but without showing what cards they are so you need to rearrange it in your mind
Just some ideas that i had in mind, don't worry about it