Looks interesting! Thanks for sharing!
Some clarification questions:
1. I'm assuming one player is the seagulls and one player is the seals, yes?
2. When you shuffle each stack of 4 cards individually, they get passed to the corresponding player face down?
3. Is a line of cards a straight line or can it bend (i.e. a tic-tac-toe line vs just a sequence of 3/4 like cards connected via arrows)?
4. A "connected card" is defined as a card that is pointing to another? Example: at the end of the round, if I have a card to the left of the anchor with the corner arrows, it is not connected to the anchor because it does not have an arrow pointing to the anchor?