Create a 3D image of a robot rhino beetle sitting on a bench, inspired by 'Shadowbringers' cinematic and 'Rhino Beetle' by Wlop and Artgerm. Incorporate a horned helmet and a sad face, with a background that resembles a Japanese sightseeing spot. The atmosphere should evoke a sense of nostalgia, as if the robot rhino beetle is reminiscing about past battles. Utilize Unreal Engine with 8K HDR resolution, RTX on, and detailed light effects. Ensure the image has epic composition, realistic clouds and lighting, and is trending on Artstation