I tried the downloadable version. It's ok as a basic approach. I like the mood of the game.
Recommended: Music, with an option to disable and able it.
I cannot easily read all of the other player's cards, it has too few pixels. I can read it fairly sure when zooming in.
The current score for the player (and opponent) is shown when zooming in.
I would remove the mouse point from being visible when in the playing room. I would recommend adding difficulty players (a simple one, medium one, hard one, one that cheats?).
The computer managed to keep up with me well, ending with 6 vs 6 and lost on my last card. The bonus cards felt like a bit much somehow, a little cluttered.
Otherwise a good game that has potential.