Well, I was informed by those who are informed, that the absolute worst on this poster is the fact that the jolly/ied chap is in a Lieutenant’s uniform and what in all tentacles’ names is a Lieutenant loading a cannon?
He’s not loading the cannon. He must be either helping to run it out or aiming it. In an emergency (say half the gun crew are killed or injured) a lieutenant, especially a lowly one, might well be expected to do that.
Why aren’t there more hammocks in the netting? Someone’s being slack.