A masterpiece, top quality, ultra-detailed modern hentai, a post-apocalyptic city, a narrow, abandoned street between tall, ruined concrete high-rises with smashed-in windows and walls thickly overgrown with ivy and greenery, cracked tarmac, rubble, on the left, a red, abandoned saloon car, diffused daylight, a girl on all fours, very long, straight, platinum-white hair with bright yellow-gold tips and a fringe, heterochromia, her mouth open, huge, heavy, sagging breasts, a short black tactical vest with yellow inserts that leaves her breasts completely exposed, black boots, her buttocks raised high, her back arched sharply, a muscular man behind her, defined abs, gleaming skin, holding her by the hip, deep penetration from behind, copious fluids trickling down her thighs, beads of sweat all over her body, glossy, wet skin, grazes and scratches across her body, hyper-detailed fluids, sheen, strong contrast, dynamic pose, high level of detail in anatomy and textures, the style of modern, detailed hentai