Vertical 9:16 flat 2D digital illustration, NOT photorealistic: hand-drawn storybook style of an indie animated music video, clean ink outlines, soft gouache color fills with visible brush texture, muted cream, sage-green and ochre palette, subtle paper grain. Scene: an empty corridor of an old Russian school in autumn — tall white wooden windows on the right with stylized golden birch leaves outside, cream upper walls, dark green painted lower walls, a chunky radiator under the window, simplified tiled floor with soft light patches. On the wide windowsill in the lower right third: a spiral notebook with a pastel sunset cover and a phone in a pink heart-pattern case. Nobody in the frame. Eye-level camera at windowsill height, 35mm, corridor receding diagonally to the upper left; asymmetric composition with negative space upper left. Quiet nostalgic mood. No text, no logos, no watermark.
