Create newly painted source-faithful HD Raptor terrain tiles from this original 4 by 4 atlas. Reference one is exactly the original 16 logical 32 by 32 tiles enlarged for visibility. Reference two contains thin cyan quarter-grid guides on those identical pixels. Reference three shows real neighboring mission arrangements only to explain edge crossings. Return ONE square fully opaque image containing exactly 16 equally sized square cells in 4 columns and 4 rows, same cell ordering and EXACT boundaries at 25%, 50%, 75% of both axes. Remove cyan guides. No gutters, labels, margins, frames, perspective change, layout change or out-of-cell features.

These are canonical REUSABLE coastal and bridge tile fragments. Trace the original land/water masks exactly in each cell: red-brown soil coastline bends and concave/convex corners occupy precisely their native normalized positions, turquoise/teal blue water fills only the original water regions. Source coast edges remain restrained sloping earthen banks at precisely original crossing coordinates; no new land, no displaced shoreline, no cliff walls, no white foam, no expanded beach, no waves breaking across the boundary. In row2 columns2 and3, preserve the two exact cropped halves of a top-down brown-plank bridge with grey metal outer side rails and a thin blue-green band between original deck planks. In bottom row columns1 and2, preserve corresponding original bridge continuation fragments cut by the atlas cell edges. Every bridge rail and deck crossing remains at the original cell-edge coordinate; do not center/combine fragments into complete standalone bridges or invent extra supports. The other cells preserve their source earth/water proportions and ground shading exactly, including large soil-free water regions.

Add authored HD detail inside native geometry: fine muted red-brown earth grit, subtle small weathered bank stones, aged brown bridge planks with restrained grain, grey rail bolts/wear, and fine blue-green water ripples with source-faithful brightness. Keep original overhead orthographic view, original top/left shading and color identity. Avoid dramatic contrast, tall cliff relief, conspicuous large stones, scene redesign, new buildings/vehicles/people/text, smoke, foam or oversized waves. All canvases opaque. Water must stay blue-green, earth muted red-brown, bridge deck brown and rails grey; source logical silhouettes and shoreline edge placement have priority over decorative detail. Newly authored HD textures, not a blurred or nearest-neighbor enlargement. Exact quarter-cell layout is mandatory for safe square extraction.
