Make one tightly localized refinement to this painting: change ONLY the warm yellow-beige timber canal walls, rims, rail posts and inlet platform into very pale, near-WHITE weathered hinoki wood. Use a pearly cool ivory-white base (#f3f2ec feeling), extremely subtle grey-beige longitudinal grain and restrained pale blue-grey shadows. It must still clearly be wood through its grain, joinery and end grain, but it should visually blend with the white paper and the pale blue/lavender landscape. Remove the honey-yellow cast; do not make the wood opaque bright white plastic or stone. Preserve the exact shape and perspective of every canal wall and waterfall. KEEP BOTH KABUKI ACTORS EXACTLY AS THEY ARE: same faces, white mane, makeup, costumes, red/purple tones, hands and poses. Keep all four boats, gold hardware, thin pole, blue water, every landscape detail, translucent underlying layers, background, crop and composition unchanged. No new objects, no text. This is a material-colour adjustment on the wooden canal only; retain the same refined realistic graphite/watercolor brushwork.