Great use of the theme, farming with cards is a lot of fun! I'll admit I lost track of time a bit and found myself humming the music. And then the music stopped, and I was sad haha (but I kept playing of course).
Loved watching my card deck expand as well, to the point where I had so many cards I wasn't too worried where I was placing the tools. Could potentially optimize things to make it a bit more challenging, though I also enjoyed just relaxing and watching things grow.
Also, thanks a lot for the in depth tutorial, as it made the game a lot more accessible. Awesome job :)