Fusi\u00f3n Interior Photo-Line: Gradiente de Realista a Boceto

Create a full-frame left-to-right fade comparison from the input photo: one side keeps high-fidelity original photography with real materials, while the other side gradually degrades along the same perspective, same object placement, and same light direction into ultra-fine black hand-drawn line art, with furniture, architecture, plants, and objects retaining only structural outlines and minimal cross-hatching; the gradient transition naturally passes through objects, with no hard cut and no duplicated second scene. Use a warm off-white paper background with very few original photo color patches, add one handwritten observation, and avoid extra decoration, corner labels, or fake text.