Re: OOC
"Did I see Starblazers" LOL. Yes. Yes I did. An area of study of mine is the Pacific War during WW II, especially the IJN, and that all started with "Wave motion gun, ready to fire!" :D
The similarity you're seeing is the red-painted bulbous bow, which was pioneered by Yamato, but used in modern ships since.
OOC, if you look at the ship carefully with a modern eye, you'd see the flattop, and that it's a carrier. But, your characters wouldn't know that. :D