Game looks and plays great. Horrible AI. Incredibly frustrating
I have a few recommendations.
When playing with 5 players, the called suit should always be displayed on the screen. The called king is flashed for half a second, and when it's gone it's gone. There is no way to remember what suit was called.
When the dog is displayed, the cards that the player discarded are displayed. So it is incredibly easy to see what suit they cut in. It is supposed to be the cards they pick up that are displayed, their discarded cards should be a secret. Maybe you could make this an option in the rules, but it really changes strategy.
The AI is awful. They often give points to the wrong team and play face cards when they know the other team is cutting. It is incredibly frustrating.
If you fix these things the game would be awesome. As it is, the graphics are great and the gameplay is smooth, but please address these concerns.