Admiral angry at letter of provocation from pirates

In connection with today\'s topic, \"Letter,\" I wrote a fantasy novel about marine adventures set in a world reminiscent of the Age of Exploration. “El Pirata Del Grimorio ~Pirate of the Grimoire~” (*See URL below) I thought I\'d make an illustration for it, so I generated it. A scene that follows the illustration that was uploaded earlier, \"The sailor on watch hits the letter bird.\" The admiral of the convoy reads a letter from a pirate who was turned into a paper bird using magic, and is furious at its provocative content. I really want him to hold the letter with both hands and tremble with anger, but I can\'t seem to get it to work properly...