Nano Banana 建築渲染

Transform this architectural sketch/photo into a professional architectural visualization render. Apply: (1) Photorealistic materials — glass reflections, concrete texture, wood grain, (2) Golden hour lighting with warm sun and long shadows, (3) Landscaping — add trees, grass, and subtle people for scale, (4) Clean composition following architectural photography rules, (5) Sky replacement with dramatic clouds. Output should look like a professional ArchViz studio render suitable for a client presentation.