Beautifully done, congrats! I played for a long time but couldn't see the ending :p If I need to get the full deck to win, it would be nice to have a counter indicating how many cards everyone has!!
And to make games shorter it would be cool to be able to choose between a 32 or a 52 cards initial deck.
Last suggestion, adding the space bar as an alternative to the mouse button would be even more comfortable!
In any case, well done, that's clearly a lot of work. Nice job :)