Art style: Pencil Sketch.
The final scene. The boy and girl are in a gentle, warm embrace. The world around them is no longer a pencil sketch but has transformed into a vibrant, beautiful, colorful watercolor landscape. The completed heart between them glows softly.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Pencil Sketch" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Pencil Sketch". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Pencil Sketch" idiom, not in any other medium.
