Red-black gradient backdrop featuring a textured black heart in the upper left corner and another black heart in the lower right corner, illuminated by dynamic lighting. The scene is adorned with super detailed complex gothic elements, enhanced by Artstation Unreal Engine 5's color processing, merging detailed matte painting techniques with deep and vibrant hues. This fantasy artwork is rich with intricate details and splashes of complementary colors, embodying the essence of fantasy concept art, rendered in 8k resolution to create a deviantart-worthy gothic masterpiece with subtle metallic accents and ethereal mist intertwining the elements.