a beautiful hyperrealistic ultradetailed 3D render of a mechanical bird, by brian sum and stephan martiniere and pixar and Toya Ito, unreal engine, octane render, gigantic, 3D, brilliantly coloured, intricate, ultra wide angle, trending on artstation, mech, metal, iridecent, volumetric lighting, HDR, polished, micro details, ray tracing, 8k