A photorealistic fantasy concept art of a luminescent heart slowly melting, casting ethereal glows on a rich red-black gradient background. The dynamic lighting enhances the intricate details, with an emphasis on cinematic depth and stunning visuals. Inspired by the styles of Artgerm, Greg Rutkowski, Peter Mohrbacher, and Guweiz, the piece captures an enchanting fusion of light and shadow, with a mythic, almost otherworldly allure. The heart pulses with life, its radiant core illuminating the dark, creating an immersive scene of poignant beauty and imaginative depth.