Retro sci-fi walking mecha in a desert war zone

Retro sci-fi concept painting of a young woman standing beside a giant bipedal walker robot in a dusty desert military camp. She has her blonde hair in a messy top bun, a calm, slightly wary expression with sun-flushed cheeks, and one hand raised to gently touch the machine’s chin. She wears a black cropped short-sleeve top with a patterned scarf, fingerless tactical gloves, a utility belt with pouches and a holstered sidearm, baggy tan cargo pants tucked into tall dark boots, and hard plastic knee pads. The robot is a massive, weathered, cream-white walker with a rounded dome head, multiple camera-lens eyes, a snout-like intake with sensor barrels, a mounted machine gun on top, antenna cables, thick hydraulic digitigrade legs with large cylindrical joints, chipped paint, scuffs, and faded orange-red hazard patches. Behind them, blurred military vehicles, tanks, and soldiers in desert camouflage fade into a hazy, dust-filled atmosphere. Cracked dry sand ground, long hard shadows, hazy blue-gray sky.

Style: 1980s-90s sci-fi illustration, gouache and oil painting look, painterly concept art, muted warm palette of sand, ochre, cream, and rust against a dusty teal-blue sky, visible brushwork, slightly grainy print texture, grounded “used future” worldbuilding, reminiscent of Syd Mead, Simon Stålenhag, Yoji Shinkawa, and Ma.K. (Maschinen Krieger) model-kit art.

Lighting: harsh midday desert sun from the upper left, strong cast shadows on the sand, warm highlights on the armor panels, atmospheric dust haze that softens the background.