A beautiful highly detailed mechanical (battle of three propeller planes against a backdrop of clouds and a distant pearly wall of ground to sky:1.3) by mark keathley and H.R.Giger, (steampunk:0.8), 70mm photo, featured on artstation, 4k, octane render, (centered composition:1.2), 4k, 8k, artstationhq | Steampunk