Flat vector illustration, simple and clean, minimalist scientific style, wide landscape composition, soft muted color palette, thin outlines, no text, no labels, no photorealism, no gradients heavy shading. A stylized cross-section landscape of the mountainous region of Petrópolis, Brazil. Background: a range of Atlantic Forest mountains (serras) as simple layered silhouettes in soft green tones. Foreground divided left to right into four adjacent zones: Far left: preserved Atlantic Forest — dense stylized trees, lush green, natural and untouched. Center-left: normal urban area — a few simple flat houses and small buildings on flat ground. Center-right: an urban area crossed by a river with flood-prone banks — a blue river running through, houses close to the water, low riverside terrain. Far right: a steep hillside (landslide-prone slope) with houses built on the incline of a mountain flank. Even, balanced composition, each zone clearly distinct but blending into one continuous scene. Clean icon-like shapes, suitable as a figure for a scientific research proposal. Vector art, sharp flat colors, white or very light sky.

The image shows a green landscape with trees, buildings, a river, and mountains in the background. The trees are lush and green, the buildings are white, and the river is winding through the landscape. The mountains are tall and majestic, providing a stunning backdrop to the scene.