Create an image of a mythical underwater city, where advanced technics are used to power magical devices, allowing mermaids and sea creatures to communicate with ancient gods and harness the power of the deep sea.

Imagine an intricate view of a mythical underwater metropolis. This city, deep beneath the ocean's surface, thrives with advanced techniques that fuel magical apparatuses. Mermaids of varying descents, from Hispanic to Caucasian, Middle-Eastern, South Asian, and Black, all utilize these devices to open channels of communication with the ancient deities they reverence. Surrounding them, a bustling throng of diverse and brilliant sea creatures amplifies the magic, collectively harnessing the boundless energies of the deep sea. The city is gleaming with glowing coral structures and brilliantly lit marine flora, portraying a breathtaking palette of the ocean's depth.