Prompt: An oil painting of a clockwork sphinx gazing upon a steampunk metropolis under an aurora sky, inventive machines, speculative fiction, inspired by Scott Listfield, Albert Robida, Jean-Marc Côté, Evgeny Lushpin, James Gurney, sy-fi retro-futurism, anachronistic technology, ornate gears, cogs and time pieces, verdigris metals, weathered brass, amber lighting, intricate details, moody atmosphere, masterful brushwork, painterly realism, illustrative storytelling, 36K, artstation showcase