A realistic, pulsating biomechanical heart seamlessly fuses deep red, vascular muscle tissue with intricate mechanical components. Its anatomical form is interlaced with polished chrome plates and fine, silver wiring that mimic veins and arteries, giving it a hybrid organic-synthetic appearance. Tiny, visible gears and piston-like valves hum softly, suggesting internal machinery maintaining its rhythmic beat. The texture is a blend of smooth, resilient flesh and cool, hard metal, with a complex network of translucent tubes carrying vital fluids throughout its complex structure., #PBR#