robot horse, gears, many ornaments and flowers in the background on a green hillside overlooking an ocean by marc adamus ford. dramatic lighting hyper-realistic fantasy concept art trending at ArtStation octane render 8k high resolution hdr photorealism intricate detailed cinematic photography volumetric natural light dark deep colors shading atmospheric cool tone cyberpunk steampunk atmosphere global illumination ray tracing unreal engine 5 realistic illustration canon eos R