I'm going to make depiction of the images here.

10 bunnies: Represent the Asashio-class, Asagumo is the 5th and x mark... Well, all of them sunk in battle.

Glass + Moon: Represents that she rescue the survivors of the fallen Kirishima during the First Naval Battle of Guadalcanal.

Lion with a Crown: Represents the HMS Electra, whom she assist in sinking.

There are other ones I'm seeing, but I ain't good at the morse code.

The Japanese Braille to the lower right appears to say うしないたくない (⠉⠳⠅⠃⠕⠩⠅⠃).