Well it is almost the international signal flag set...... but just looking at it... things like "S" .... should be engines going astern.. but it looks like... well......... going to the bathroom.... and "F" should be "disabled, communicate with me" and here it appears to be "email please" be interesting to see the rest...
Seems like the artist got mixed up on W and X D and J is probably better switched. Compass means navigation difficulties, but the evil cat means keep clear. :P
Updated
Help!I’m tired
Real meaning: Man overboardForm battle formation!
Real meaning: Directing course to starboardI'm sleepy
Real meaning: Altering course to portOn anti-submarine watch
Real meaning: I'm dragging anchor. or Ship has communications duty (visual).Launching carrier airplanes
Real meaning: loading or discharging dangerous goods / explosivesMove aside please
Real meaning: keep clearSplit bill please
Real meaning: I wish to communicateNot enough gunpowders
Real meaning: I require a pilot. or I am shooting nets (fisherman boat)Don't want
RejectionYamato is not coming
Probably talking about LSC
Real meaning: Ship is healthy, requesting permission to enter harbour…want to pee
Real meaning: employing astern propulsionRice, large serving please
Real meaning: requiring a tug. or Shooting nets (fishing boat)Let's memorize theseYou bring any snack ?
Real meaning: All crew report on board; ship is leaving.StoppingShip Girls' International Signal Flag (fake)Mail me
Real meaning: I am disabled, communicate with meYes
AffirmationI have pilot fairy on boardI'm hungry
Real meaning: Ship is quarantinedFound enemy fleet
Real meaning: Diver downMy stomach hurt
Real meaning (X): Stop carrying out your intentions and watch for my signals.You, that's dangerous
Real meaning: You are running into dangerThe compass got bad mood
Real meaning: Dangerous cargo aboard and on fire; keep clear.Pay attention to my signal
Real meaning (W): I require medical assistance.Finished confirming signal
Real meaning: preparing to replenish. or Ready duty ship.Cat-ted
Probably Error Musume
Real meaning: Keep clear; maneuvering with difficulties