A beautiful highly detailed mechanical (regulated river, overcrowded city day, citadell, towers, mountains, valley, boats, sailboats, stone bridge:1.3) by Paul Kelpe and shinji aramaki, (atompunk:0.8), 70mm photo, featured on artstation, 4k, octane render, (centered composition:1.2), 4k, 8k, artstationhq | Steampunk