Teenage boy resting under a riverside tree in summer

Cinematic anime-style illustration of a teenage boy sitting under a large tree near a quiet riverside, leaning against the textured tree trunk, wearing a slightly wrinkled school shirt with loosened tie and blue jeans, headphones on, eyes down in a calm introspective mood, tall wild grass surrounding him, soft overcast sky, peaceful countryside background with river and distant greenery, gentle summer breeze moving the leaves, detailed bark texture and natural foliage, muted earthy color palette, soft painterly shading, nostalgic and melancholic atmosphere, realistic proportions, Studio Ghibli-inspired aesthetic, shallow depth of field, vertical composition, ultra-detailed, 4K resolution, no text, no logo, no watermark