Mood: Mystical | Subject: A geometrically perfect arrangement of vibrant, glowing jellyfish, their luminescence piercing the deep blue ocean depths | Timing: Midnight in the undersea world, the only light coming from the glowing jellyfish | Lens: Telephoto | Lighting Conditions: The soft, bioluminescent glow from the jellyfish casting an otherworldly light onto the surrounding ocean depths | Style: Fusion of deep-sea mystery and abstract geometry | Colors: The neon blues, pinks, and purples of the jellyfish contrasted with the deep, dark blues of the ocean | Background: The seemingly infinite expanse of the deep sea, adding depth and mystery | Perspective: Eye-level, capturing the mesmerizing beauty of the glowing jellyfish and the vast, mysterious ocean around them | Focal Point: The largest jellyfish in the center of the arrangement, its glow the most brilliant | Space: Expansive, emphasizing the vastness of the ocean and the enchanting beauty of the jellyfish | Pattern/Texture: The smooth, translucent surface of the jellyfish contrasted with the endless, dark water of the ocean | Element defining the scale: A solitary, small fish swimming near the jellyfish, its size providing a sense of the scene's grand scale | Depth of Field: Deep, focusing on the jellyfish while subtly blending into the infinite ocean backdrop | Feeling: Magical and awe-inspiring | Contrast elements: The mystical scene of a geometrically perfect arrangement of glowing jellyfish in the deep sea at midnight, its deep-sea mystery and abstract geometry enhanced by the soft bioluminescent glow and contrasting textures, set against the backdrop of the infinite, dark ocean.