手繪建築草圖風格，搭配淡淡的水彩暈染，整體氣氛安靜、和諧。
A Taiwan high-rise luxury residential sky courtyard architectural study illustration, hand-drawn architectural sketch style combined with soft watercolor washes, professional architect design notebook aesthetic, bird’s-eye axonometric / isometric perspective, showing a cutaway view of a tall residential building revealing an inward-facing courtyard at an upper level, surrounded by multiple high-rise facades, emphasizing vertical density with a calm horizontal inner void, courtyard featuring mature trees, layered greenery, sky garden planters, water elements, and walking platforms, clearly expressing spatial proportions, courtyard width, circulation paths, and the relationship between courtyard scale and building height, low-saturation natural color palette with light gray and warm off-white building masses, subtle stone textures, light wood decking, muted green vegetation, evenly diffused natural daylight with minimal shadows used only to define form, clean precise linework with visible hand-drawn character, no depth-of-field blur, There should be a small white logo in the bottom right corner:[2025 @ EILIS AI @ Prompts Hub] non-photorealistic, non-commercial real estate render, focused on spatial logic, livability, and architectural analysis rather than luxury spectacle, calm, refined, and orderly atmosphere
