Original top-down battlefield terrain map for a run-and-g...

Original top-down battlefield terrain map for a run-and-gun arcade game, strict orthographic bird's-eye view, directly overhead, flat 2D game map, no perspective, no horizon, no 3D side walls. Terrain layer only: ground texture, dirt road, grass, mud, river water, gravel shoals and tire tracks only. No trees, no bushes, no buildings, no vehicles, no boats, no characters, no props, no text, no UI, no watermark, no border. A wide weathered dirt road runs vertically through the exact center of the frame at a fixed width, clearly readable as the play lane. The leftmost fifth of the frame is a slow muddy river running vertically from top to bottom, with wet dark banks, sandbars and shallow gravel shoals where the water meets the road; the right side is flat riverside grass with muddy patches and faint tire ruts. Water surface is calm, dull brown-green, no reflections, no waves. Painterly semi-realistic retro arcade game art, muted olive-green, muddy brown and grey-blue palette, low visual n