Awesome castle, but it has some problems fitting in the 7min timer. I played it once with a full server now, and it feels way too big.
Possible solutions: Move attacker spawn between first Gate and Siege tower, shortening the time attackers need to reach the walls. Add another ladder to the inner castle, right next to the inner Gate so attackers are not forced to hack down the doors, but can go the (slightly longer) way up the walls and open them.