A radiant heart of pure light slowly melting, set against a vivid red-black gradient backdrop. The scene is illuminated with dynamic, cinematic lighting that highlights the ethereal glow and details within the heart. The image embodies a photorealistic fantasy concept art style with inspiration drawn from the masterful techniques of Artgerm, Greg Rutkowski, Peter Mohrbacher, and Guweiz. The composition presents an incredibly detailed and breathtaking visual experience, blending elements of surrealism and reality, with intricate textures and a captivating, otherworldly atmosphere.