Dawn Sextant Over Brass Dunes

Twin astronaut explorers sprint across a wet-clay desert at sunrise, one wielding a brass survey sextant and the other unfurling a torn geometric signal banner, mirrored helmets reflecting exploding dust plumes, angular dunes collapsing into spirals, brass navigation instruments tumbling through the air, long kinetic shadows, Art Deco travel-poster composition with bold stepped geometry, sunburst horizon, metallic gold typography shapes without readable text, midnight navy sky against molten brass dawn, glossy clay splashes and sculpted footprints, fractured perspective, energetic diagonals, elegant vintage print grain, dramatic expedition mythos, richly layered halftone texture, panoramic 16:9 composition.