A colossal, ethereal jellyfish floating in the depths of a vast teal ocean, its translucent bell illuminated with glowing orange and golden hues, intricate city structures suspended within its gelatinous interior, bio-luminescent pathways winding through the sprawling civilization, tiny humanoid figures bustling among glowing coral-shaped buildings, the ocean teeming with vibrant schools of fish and luminous marine life, a distant sunbeam filtering through the water creating a magical, dreamlike atmosphere, breathtaking details, cinematic lighting, perfect color harmony of teal and orange, surreal and otherworldly design, highly detailed, fantasy-inspired composition.