I have gone through the documents. When i was reading the game design documents i really felt good about how I myself imagine the game to be. Although i feel that it's not clear on if it's a card game or a board game and how exactly it works. Jack Wu showed me some examples which made it clearer though. So if the game design documents had some concepts or exampels added that would make it much easier to get a picture of the game. And of course the game design is an ongoing process, so it will need more fleshing out.
Also, it would be good to have dates on the documents when they were last edited. So it's easier to know of which document I'm speaking of, in case it's been updated.
As for the Game Proposal document, it's all good analysis of the card game market and all. But there are clear and definitive problems a game like this would have if it was meant to be an online competitive multiplayer game, which could bring about the failure of the game. Such as being the first game created by a no-name studio, and meant to be played by a large number of players Online. This is generally a major problem for new developers who are working on Online games. The lack of people to play with. Which is very much necessary in a card game.
Edit: I beleive a more visual Game Desgin Document would really serve good for explaining the game. But you would need concept artist to work on that.