Vibrant Pixel-art Mural Showcasing a Peaceful Underwater Kingdom

Design a vibrant pixel-art mural showcasing a peaceful underwater kingdom divided into three distinct horizontal zones. Each zone must include six specific elements: Coral Reefs, Exotic Marine Creatures, Ancient Ruins, Floating Bubbles, Bioluminescent Flora, and Swimming Ocean Dwellers. For the Top Zone (Shallow Waters - Pastel Blues): portray soft pastel coral formations, small curious fish swimming by, sandy fragments of ancient ruins, scattered pearl-like bubbles, and gently glowing seaweed. In the Middle Zone (Mid-Depth Realm - Deep Teals): feature rich coral designs in vivid teals and purples, medium-sized creatures such as jellyfish and manta rays, partially submerged temple archways and columns, sparse trails of ascending bubbles, and vibrant underwater plants swaying in the currents. For the Bottom Zone (Abyssal Depths - Midnight Blacks): include shadowy coral in dramatic blues and blacks, majestic deep-sea beings like giant squids and anglerfish, colossal ruins glowing faintly with enigmatic runes, oversized slow-moving bubbles, and eerie, pulsating flora with fantastical light. Use a consistent pixel scale and artistic style across all zones, capturing the unique atmosphere and intricately blending the details of each layer into a unified underwater scene.