If I count right there are at some places 9 containers stacked on top of each other. Quite a squeeze. The lashings are calculated for a maximum permissible acceleration of 0.8 g or 7.848 m/s^2.
I made a quick calculation that shows that at the top of the stacks by a roll of 30° the acceleration is 9.7 m/s^2. To be sure I will recalculate it.