originalen674 characters
Macro cinematic POV descending into crushing deep-sea darkness. Subject: a fist-sized bioluminescent jellyfish-polywog hybrid with translucent membrane fins, a pulsing core-vein network visible through its skin, and six trailing filament tendrils. It pulses its core to strobe-light the abyss, darts between hydrothermal vent geysers, rides a burst of superheated bubbles upward, weaves through a forest of tube worms, and escapes a colossal shadow-maw by compressing its body through a narrow rock fissure. Photorealistic subsurface scattering, caustic light ripples, particulate matter in water, anamorphic lens flares from bioluminescence. No cuts, handheld camera drift.