Hard constraints — apply before anything else: no photorealistic rendering, no plastic specular highlights; no neon colors, no high-saturation clashes; no flat fills without visible brushwork. A A young explorer with a worn canvas backpack, walking slowly, looking up into the canopy. Composition: wide environmental framing, subject on the left third. Style identity: 手绘水彩叙事，自然主义的世界观. Line and form: 细腻有机的手绘线，略带抖动; strongly organic line quality. Color: muted sage green and warm ochre; 低饱和自然色，苔绿与暖赭; faintly muted palette. Lighting: diffused sunrise light through the leaves; strongly soft light. Material and texture: watercolor on cold-press paper; visible pigment granulation. Character and mood: gentle, curious, unhurried; nostalgic, quiet storytelling; faintly quiet atmosphere. Depth: cinematic framing. Aspect ratio 3:4. Reject the result if: no visible pigment granulation or paper grain on zoom; green covers less than one third of the frame; more than three equally bright focal points. User exclusions: photorealistic, plastic texture, oversharpened, neon.