Norman Bel Geddes style reference and prompts

A monochrome retro-futurist illustration treatment sets vast streamlined curves above a dense granular lower field. Charcoal undersides, silvery gray surfaces and almost white atmospheric gaps create a powerful value hierarchy. Smooth sweeping bands remain sharply bounded, while distant detail breaks into stipple, soft grain and haze. High oblique perspective exaggerates scale: small repeated marks cluster far below monumental near forms. Diffuse light from a pale side opening brightens selected upper planes and leaves deep continuous shadow beneath them. Curvilinear motion crosses rigid straight-line rhythm, giving the composition both speed and architectural weight. The visual effect is visionary, austere and slightly ominous.

A square monochrome retro-futurist illustration looks down over a crowded metropolis beneath enormous curving elevated roadways. The viewpoint is high and oblique, with dense dark building blocks filling the lower half and fading into a smoky gray skyline. One bright sweeping road rises from the lower right and bends toward a distant interchange at center-right, its surface dotted with many tiny dark vehicles. Above it, a much larger dark overpass arcs across nearly the entire top of the frame, leaving long pale strips of sky visible between its nested lanes. The nearest structure feels impossibly wide compared with the small streets and towers below. A small propeller-like aircraft crosses the open pale sky at upper left, while several tinier flying shapes dot the haze toward the horizon. Straight city streets cut bright channels through the darker blocks, reinforcing the depth below the curving routes. Fine stipple and soft grain texture the air and distant buildings, while the road edges stay clean and graphic. Diffuse light comes through the hazy sky from the left, making pale road surfaces glow and leaving the underside of the overhead lanes almost black. The scene contains no legible signs or close human figures. The overall composition is monumental and restless, contrasting fluid streamlined curves with the rigid granular city grid in a tightly controlled grayscale palette.