Rain Garden Atrium Tower in Layered Mixed Media Collage

Portrait 2:3 architectural composition, approximately 1024x1536 pixels. A slender contemporary atrium tower rises from a compact urban plaza during a quiet overcast morning, its central open-air void crossed by narrow elevated walkways and filled with cascading rain gardens, hanging vines, shallow planted terraces, and small trees. The facade combines pale mineral panels, translucent glazing, perforated screens, and recessed balconies, while collected rainwater runs through visible narrow channels into planted basins at ground level. Render the entire scene in Mixed Media, sub-style Collage / Mixed Media, using visibly layered cut paper, fibrous handmade paper, thin translucent vellum, rough plaster fragments, fabric mesh, matte card shapes, and subtle graphite construction marks. Building planes are assembled from overlapping geometric pieces with slightly irregular handmade edges, greenery appears as layered botanical cutouts and textured paper fibers, and glazing uses translucent stacked sheets that catch diffused gray daylight. Soft shadows between physical-looking layers create dimensional depth without losing the tactile collage character. Include a few tiny anonymous human silhouettes for architectural scale, wet pavement shapes with restrained reflections, and a muted palette of limestone beige, mist gray, moss green, and subdued blue-green. Clean vertical composition, strong architectural hierarchy, no readable text, no signage, no logos, no brands.