Naval fight is pretty good. Although i do have a few issues with it.
First is the water is too blue, so rather than looking like actual water, it looks like the ships are moving on a blue goop. I suggest you make it a bit more transparent or lighter in colour so it would contrast better with the ships that are already dark in tone.
Second is the enemy plane. I know what you're trying to do with that, but frankly it takes away from the main focus of the mode which is sinking ships. Because i found out i wasted a lot of time just to deal with them before getting back to the main fun. I suggest getting rid of the guy entirely and replace it with more AA for the ship.
Third is the ship's AA fire. WW2 ships have dozens of AA platforms but when i play i only see one or three or four streaks of AA fire at best. Which gives ne multiple windows to just drop the torpedo directly on the ships instead of having to throw it from afar
Fourth is i found out that if you go into full power, the ammo from the enemy has a certain range before disappearing...which kinda explains for itself why its an issue.
Fifth is the UI. When i saw "Bomb" i thought i was supposed to drop it directly. Only when i missed one did i realise it was a torpedo so....a simple fix from "Bomb" to "Torp" will do.
I suggest looking into a game called Warplanes WW2 dogfight. Which has a pretty fun and realistic enough naval mode and we can take inspiration from.