Silhouetted couple embracing in vibrant cosmic energy vortex.

Digital render employing layered particle systems and fluid dynamics simulation with warm-to-cool color gradients spanning red-orange-yellow to blue-teal spectrum. Two human silhouettes positioned centrally, backlit by luminous atmospheric swirls. Technique combines procedural nebula generation with light bloom effects, creating volumetric depth through semi-transparent overlapping layers. Precise gradient mapping produces chromatic transitions; scattered point-light sources establish stellar field. Technical execution demonstrates advanced shader work and ray-traced lighting calculations.