Queen Maurine of Atlantis.
Redesign of the Public Domain comic book character Maurine Gloucester, star of the feature titled Maurine Marine created by Harold DeLay for Blue Circle Comics.
Maurine was an American girl whose ship was sunk by a Nazi U-Boat. As she was drowning, the god Neptune revived her and gave her the ability to breathe under water. She was appointed queen of Atlantis. The previous Queen, who was the only woman in an otherwise all-male Atlantis, was dying and they required a new one (I’m going to be ignoring the part about Atlantis being all men though). She had a bunch of adventures fighting against the Miromen of their neighbouring county Miroland, the Ice Men, and of course those pesky Nazis. The stories are a lot of fun and I would recommend checking them out. They have cool fantasy worldbuilding and appealing art.
Maurine’s design was pretty standard though - a normal looking blonde teenager with a crown and cape. I thought it would be cool if Poseidon’s resurrection caused her to slowly mutate over the decades to make her more fishlike.