Deep-Cut Underpass Portal on a Dropped Carriageway

Deep-Cut Underpass Portal on a Dropped Carriageway: A chamfered portal frame where the road dives under another, the carriageway dropped in a deep cut with cream wing walls either side and no colour but concrete, ink and asphalt, and an orange car descending into the mouth. A stylized isometric neo-brutalist scene of raw board-formed concrete Brutalist architecture - flat unmixed colour with a heavy ink contour and no bevel, the hard offset shadow signature carried behind the entrance canopy or portico - delivered as a hero iso render on a transparent background plus the assembled model as GLB with the contour built as geometry.