PROMPT:
Create a comic style cartoon image of a fantastical underwater metropolis, teeming with marine life, where a group of anthropomorphic sea creatures, including a wise octopus scientist, a brave shark warrior, and a playful sea otter inventor, gather around a grand, glowing portal that seems to be pulling them towards an ancient, hidden treasure chamber, set amidst a backdrop of coral reefs, sunken ships, and glittering gemstones, using vibrant colors, with an emphasis on blues, greens, and yellows, and a focus on photorealistic textures and details, with dynamic lighting effects that capture the sense of wonder and excitement.