nier automata walking in post apocalyptic flooded city, city ruins rainy melancholy day, lots of trees, dense vegetation, unreal engine, high octane, epic engine, volumetric lighting, ray tracing, rtx on, exposure, god rays, overcast, ambient lighting, blooming flowers, 3 d render, cinematic, subtle, high saturation, photo, ultra realistic, hyper realistic, extreme detail, bleeding edge graphics, 4 k, 8 k, hdr,