Surreal Melting Hourglass 3D Simulation

Hyper-realistic 3D render in Unreal Engine 5 style of a transparent [melted and distorted antique hourglass glass sculpture] filled with [sand flowing like liquid metal, small rusted gears, and time flowing backward]. The internal content conforms precisely to the interior contours, simulating physical light refraction through thick glass. Set against a [desert sunset with a warm orange and purple gradient] backdrop. Minimal aesthetic, elegant and surreal composition, soft lighting, delicate reflections, and a subtle volumetric glow.