Great looking diorama. Very cool way to display the human torpedo in mid air.
The Maiale were not suicide torpedos. They were supposed to dive under ships at anker and detach the warhead, set a timer, and then sail back out of the harbour. But you probably know this already.
I think they were used at least once against the British with some success, but I might remember wrong.
Anyway, great result so far. Looking forward to see more