水彩動漫風插畫：藍灰色頭髮的少年坐在窗邊抽著煙斗，旁邊的蚊香冒著煙

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Create a delicate vertical anime-style watercolor illustration of a serene young man seated on a wooden floor beside an open shoji-style window at dusk. He has misty blue-gray long, tousled hair braided over one shoulder, pale skin, soft half-closed eyes, and a calm introspective expression as he exhales smoke. Dress him in a loose traditional Japanese kimono: white inner robes, a deep indigo haori, and a dark sash, with flowing fabric folds pooling around his seated legs. He holds a slender kiseru-style smoking pipe horizontally in one raised hand near his mouth, with a thin ribbon of smoke drifting upward in a loose S curve. In the foreground, place exactly 1 round ceramic incense tray containing exactly 1 green spiral mosquito coil with exactly 1 glowing orange ember; a second translucent smoke ribbon rises from the coil and curls along the right side of the figure. The background should be mostly empty warm off-white paper, with exactly 1 dark wooden window frame on the right edge and a small glimpse of water, reeds, and a low orange sunset outside. Use airy ink linework, pale blue-gray washes, subtle beige shadows, visible sketch texture, soft negative space, and a quiet melancholic summer evening mood. Keep the composition tall and uncluttered, with the character occupying the lower-right center and large blank space above the smoke; no text, no watermark, no modern objects.