**Prompt:**

At the top of the cartoon image: *"Have a Manta-stic 18th Birthday, Ava – You're Officially Deep Into Adulthood!"*

A colorful cartoon scene set underwater. A grinning teenage girl scuba diver (Ava) with wild party goggles and an 18-shaped air tank is surrounded by a lively reef. She’s high-fiving a giant, goofy-looking manta ray wearing a party hat and holding a "Legal at Last!" sign in its fin. Other sea creatures—like jellyfish with party horns, a blowfish wearing sunglasses, and a crab juggling cupcakes—float around, joining the undersea birthday bash. In the background, a coral reef is decorated with seaweed streamers and floating bubble balloons shaped like “1” and “8.” Ava is joyfully riding the manta ray like a surfboard, as a banner tied to the manta’s tail reads: "Adulthood? Just Dive In!"

Generated with these themes: Scuba Diver, Manta ray, and 18th Birthday.

Made with ❤️ by AI.