I don't really know what I'm talking about but I'm not sure this type of card game translates well online. In my opinion, the site design is a problem. The problem I'm seeing is that there's nothing making me want to learn how to play a new card game. I have no idea what the answer to that problem is but there's got to be some motivator on the site, I think, to get people to want to learn it. I'm sure once the game is learned people will love it. Maybe you could look at techniques other card games/board games use to get people interested? If you made a digital version of the game, you may also be able to sell the physical card game online?
The site is too red.