北京城市垂直海報，展現水彩畫作流暢過渡為逼真空拍寫實畫面

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建立一張直式城市海報，呈現北京國貿 CBD 從水彩畫轉變為寫實攝影的過程。畫布採直式構圖，比例約為 4:5，並呈現從左至右無縫銜接的過渡：左半部是筆觸自由的水彩插畫，可見紙張紋理與飛濺顏料的邊緣，使用藍色、薰衣草紫、桃色、黃色與藍綠色的柔和粉彩暈染；右半部則逐漸轉變為清晰寫實的城市空拍照片，明亮的藍天下散布著雲朵。天際線必須呈現北京 CBD 的地標：高聳的 China Zun 塔主導右側畫面，中央偏右是具有銳角環形結構的 CCTV Headquarters，左側中央則有多座玻璃摩天大樓；下方可見寬闊道路、車道、樹木、低樓層街區與城市大道。左上方加入優雅的中文標題字樣 国贸CBD，下方加上一條細水平分隔線，以及較小的副標題 从水彩到现实。使用溫暖的午後晚時陽光，寫實一側呈現高細節，繪畫一側呈現夢幻、半透明的水彩暈染；讓畫作與現實之間的界線感覺詩意而流暢，彷彿城市正從畫卷中甦醒。不要人物，不要浮水印，不要額外標籤。

Create a vertical city poster showing Beijing Guomao CBD transforming from watercolor painting into photorealism. The canvas is portrait-oriented, about 4:5, with a seamless left-to-right transition: the left half is a loose watercolor illustration with visible paper texture, splattered pigment edges, soft pastel washes in blue, lavender, peach, yellow, and teal, while the right half gradually becomes a crisp realistic aerial city photograph under a bright blue sky with scattered clouds. The skyline must feature the Beijing CBD landmarks: the tall China Zun tower dominating the right side, the CCTV Headquarters angular loop building near the center-right, and multiple glass skyscrapers on the left-center, with broad roads, traffic lanes, trees, low-rise blocks, and urban avenues visible below. Add elegant Chinese title typography in the upper-left reading 国贸CBD, with a thin horizontal divider line beneath it and smaller subtitle text reading 从水彩到现实. Use warm late-afternoon sunlight, high detail on the realistic side, dreamy translucent watercolor blooms on the painted side, and make the boundary between painting and reality feel poetic and fluid, as if the city is waking from a scroll. No people, no watermark, no extra labels.